Answer:
To find out how many batches of cookies the factory made, we need to divide the total amount of flour used (7 1/2 bags) by the amount of flour used per batch (3 3/4 bags).
We can start by converting 7 1/2 bags of flour to a mixed number: 7 1/2 bags = 7 + 1/2 = 7.5 bags
Next, we can convert 3 3/4 bags of flour to a mixed number: 3 3/4 = 3 + 3/4 = 3.75 bags
Then, we can divide the total amount of flour used by the amount of flour used per batch:
7.5 bags / 3.75 bags/batch = 2 batches
Therefore, the factory made 2 batches of cookies yesterday
A whale-watching tour boat, moving west at a constant speed 45 miles per hour, has finished viewing a whale and is returning to shore. One whale that is right next to the boat swims away in the opposite direction, moving at a constant speed of 25 miles per hour. They swim apart for 35 minutes and then change direction. The boat turns south and again the whale turns in the opposite direction of the boat. They continue moving apart for another 25 minutes. How far apart are the boat and the whale? (Round your answer to the nearest mile).
The boat and the whale are about 218.5 miles apart.
Solving for the distance between the boat and the whale:Using the Pythagorean theorem to calculate the distance between the boat and the whale.
Let's call the distance between the boat and the whale "d" and the time they moved apart "t".
1st movement:
d = 45t
2nd movement:
d = (45t + 25(t+35))²
To calculate the final distance, we need to square d from the second movement and add the result from the first movement.
d² = (45t)² + (25(t+35))²
We know that the boat and the whale were moving apart for 35 minutes and 25 minutes, so we can substitute t = 35 and t = 25 in the equation.
d² = (4535)² + (2560)²
Taking the square root of the result and get the final distance between the boat and the whale.
d = ([tex]\sqrt{4535 ^{2} +2560^{2} }[/tex])
d ≈ 218.5 miles
Hence, the boat and the whale are about 218.5 miles apart.
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g(0)=-4x^2-3x+2
g(2)=-4^2-3x+2
The simplified value for the function at g(0) and g(2) are 2 and -20 respectively.
What is simplification?To simplify is to make something simpler. Simplifying an equation, fraction, or issue in mathematics entails taking something complex and making it simpler. The issue is made simpler by calculations and problem-solving strategies. We can simplify fractions by removing all common elements from the numerator and denominator and putting the fraction in its simplest/lowest form.
Given a function g(x) = -4x² - 3x + 2
to find the values of g(0)
and g(2)
for g(0)
substitute x = 0 in the equation,
g(x) = -4x² - 3x + 2
g(0) = -4(0)² - 3(0) + 2
g(0) = 2
for g(2), substitute x = 2 in the equation,
g(x) = -4x² - 3x + 2
g(2) = -4(2)² -3(2) + 2
g(2) = -4(4) - 6 + 2
g(2) = -16 - 6 +2
g(2) = -20
Hence the values for g(0) is 2 and for g(2) is -20.
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Help pls simplify the following expression (attached to image )
Answer:
[tex]\frac{1}{343}[/tex]
Step-by-step explanation:
[tex]7^{-3}[/tex] = [tex]\frac{1}{7^{3} }[/tex] = [tex]\frac{1}{7x7x7}[/tex] = [tex]\frac{1}{343}[/tex]
During a spring clearance sale, Sears advertise 1/4 off the list of Model II microwave ovens and an additional 1/5 off the sale price for ovens that are scratched or dented. If the list price of a Model II is $240, what is the sale price? What is the price of a scratched one?
Answer:
$180.00 sales price
$144.00 for a scratched one
Step-by-step explanation:
240 x .75 = 180
1/4 is 25% (100% - 25% = 75% which is .75 as a decimal)
180 x .80 = 144
1/5 is 20% (100% -20% = 80% which is .8 as a decimal)
A diagram of a roundabout that is being designed to improve driver safety on a busy road is shown. The radius of the circular field planned for landscaping is 27.5 feet. What is the approximate distance around the outside of the circular field? PLEAS HELP WANT!
A. 345.4 feet
B. 172.7 feet
C. 86.35 feet
D. 2,323.1 feet
The approximate distance around the outside of the circular field is B. 172.7 feet.
Length of the circumference of a circle.A circumference is the part of a circle which is referred to as the boundary. The length of the circumference of a circle is given as;
length of a circumference = 2πr
where r is the radius of the circle.
To determine the distance around the outside of the circular field, we have;
length of the distance around the outside of the circular field = 2πr
given that;
r = 27.5 feet
length of the distance around the outside of the circular field = 2πr
= 2*(22/ 7)*27.5
= 172.7
The length of the distance around the outside of the circular field is 172.7 feet.
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NO LINKS!!! NOT MULTIPLE CHOICE!!!
Find a counterexample to show that the following conjectures are false:
a. The sum of two numbers is always greater than zero.
b. The sum of a positive number and a negative number is always positive.
c. If a figure has four sides, then it is a rectangle.
Answer: a. The sum of two numbers is always greater than zero.
Step-by-step explanation:
A counterexample to this conjecture would be when the two numbers are both negative. For example, the sum of -5 and -3 is -8, which is less than zero.
b. The sum of a positive number and a negative number is always positive.
A counterexample to this conjecture would be when the negative number is greater than the positive number. For example, the sum of 5 and -6 is -1, which is less than zero.
c. If a figure has four sides, then it is a rectangle.
A counterexample to this conjecture would be a square. A square has four sides, but it is not a rectangle because all of its angles are 90 degrees while a rectangle has four right angles.
It's good to keep in mind that a conjecture is a statement that is made based on observations and that it hasn't been proven yet, therefore a counterexample can be used to show that the conjecture is false.
Answer:
a) -5 + 1 = -4
b) 2 + (-10) = -8
c) A scalene trapezium.
Step-by-step explanation:
A counterexample is proof that a conjecture is false.
Part aGiven conjecture:
The sum of two numbers is always greater than zero.If one of the numbers is negative, and its absolute value is equal to or greater than the value of the positive number, the result will always be equal to or less than zero.
Counterexample:
-5 + 1 = -4As -4 is less than zero, this proves that the conjecture is false.
Part bGiven conjecture:
The sum of a positive number and a negative number is always positive.If the absolute value of the negative number is greater than the value of the positive number, the result will always be negative.
Counterexample:
2 + (-10) = -8As -8 is negative, this proves that the conjecture is false.
Part cGiven conjecture:
If a figure has four sides, then it is a rectangle.Counterexample:
A scalene trapezium.The interior angles of a rectangle are congruent (90°).
A scalene trapezium has four sides, but as its interior angles are all different, it is not a rectangle. This proves that the conjecture is false.
here are 15 European cities that Yolanda would eventually like to visit. On her next vacation, though, she only has time to visit 3 of the cities: one on Monday, one on Tuesday, and one on Wednesday. She is now trying to make a schedule of which city she'll visit on which day. How many different schedules are possible? (Assume that she will not visit a city more than once.)
The number of different schedules are possible is given by the permutation and the equation is P = 2,730 schedules
What are Permutations?A permutation is an ordered arrangement.
The number of ordered arrangements of r objects taken from n unlike objects is:
Permutation ⁿPr = n! / ( n - r )!
Given data ,
Let the total number of schedules be P
Let the total number of European cities be n = 15
Let the number of cities Yolanda can visit in time r = 3 cities
So , the total number of different schedules is calculated by permutation and ,
The total number of different schedules = ⁿPr = n! / ( n - r )!
Substituting the values in the equation , we get
¹⁵P₃ = ( 15 ) ! / ( 15 - 3 ) !
¹⁵P₃ = ( 15 ) ! / ( 12 )!
¹⁵P₃ = 15 x 14 x 13
¹⁵P₃ = 2,730 schedules
Hence , the value of P is 2,730 schedules
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Math expression work
The given expression is equivalent to the expression -x² + x + 30.
What is the expression?The expression is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.
Here,
Given expression,
= (5 + x)(6 - x)
Simplifying the expression using distributive property,
= 5 [6 - x] + x [6 - x]
= 30 - 5x + 6x - x²
= -x² + x + 30
Thus, the given expression is equivalent to the expression -x² + x + 30.
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Find The Missing Number
1. 1:2=4N
2: 3:8=N:16
3.15:20=30:N
4.N:25=2:5
5.10:N=40:80
The missing number of all the ratios are given below.
What is ratio?The ratio is a numerical relationship between two values that demonstrates how frequently one value contains or is contained within another.
The ratios are given.
1. 1:2=4:N
2: 3:8=N:16
3.15:20=30:N
4.N:25=2:5
5.10:N=40:80
p:q can be written as p/q.
To find the missing number:
1. 1:2=4:N
1/2 = 4/N
So, N = 8
2: 3:8=N:16
So, N = 6
3.15:20=30:N
So, N = 40
4.N:25=2:5
So, N = 10
5.10:N=40:80
N = 20
Therefore, all the missing numbers are given above.
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Write the quotient 25/4+3i in the form a + bi.
Answer:
hope this would help you!
Jenny drew a figure in art class. Does it have rotational symmetry? If yes, what is the angle of rotation.
Answer : Yes, it has rotational symmetry. The angle of rotation is, 60 degree.
What is Rotational symmetry?It is a shape that has Rotational Symmetry when it still the same after the rotation.
here, we have,
The given figure is hexagon and it has rotational symmetry because it still the same after the rotation.
As there are 6 sides of hexagon geometry and the degree of rotation is, .
So, the angle of rotation = 360/60
=60 degree
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Convert the following [ Use exchange rate 1CAD 0.82 USD]
1.45 CAD = ? USD
45.50 USD = ? CAD
2.50 CAD = ? USD
1,500 CAD = ? USD
Answer: For converting Canadian Dollars to US Dollars divide 1 by 0.82 to give you an answer of around 1.2195(repeating). Then multiply that number by each of the Canadian Dollar amounts. US Dollars to Canadian Dollars is much simpler, as you just multiply the amount by 0.82 to find the answer.
$1.45 CAD x 1.2195 = $1.77 USD
$45.5 USD x 0.82 = $38.31 CAD
$2.50 CAD x 1.2195 = $3.05 USD
$1,500 CAD x 1.2195 = $1,829.27 USD
Hope this helped, and have a great day!
Square ABCD has a diagonal AC with the given vertices. Find the coordinates of the remaining vertices.
A(-4,-1) and C(2,5)
The coordinates are ( , ) and ( , )
Answer: To find the coordinates of the remaining vertices of square ABCD, we can use the information we have been given about the diagonal AC and its vertices. The diagonal AC has been given as having the vertices A(-4, -1) and C(2, 5). Since a square has right angles, we know that the other two vertices of the square must form a right angle with the diagonal AC.
To find the coordinates of vertex B, we know that it must have the same y-coordinate as vertex A, but a different x-coordinate. Since the x-coordinate of vertex A is -4, we can deduce that the x-coordinate of vertex B must be the same as the x-coordinate of vertex C, which is 2. Therefore, the coordinates of vertex B are (2, -1).
To find the coordinates of vertex D, we know that it must have the same x-coordinate as vertex A, but a different y-coordinate. Since the y-coordinate of vertex A is -1, we can deduce that the y-coordinate of vertex D must be the same as the y-coordinate of vertex C, which is 5. Therefore, the coordinates of vertex D are (-4, 5).
In summary, the coordinates of the remaining vertices of square ABCD are B(2, -1) and D(-4, 5)
Step-by-step explanation:
At an amusement park, only 17 people are allowed on a ride at the
same time. There are 157 people waiting in line. How many groups
of riders will there be?
Show your work.
Answer:
To find out how many groups of riders there will be, we need to divide the total number of people waiting in line (157) by the maximum number of people allowed on the ride at one time (17).
157 people / 17 people/group = 9.235 groups (approx)
But since the groups must be in whole numbers, we have to round up the value 9.235 groups to the next whole number, which is 10 groups.
So, the number of groups of riders will be 10.
Answer: 9 groups of riders.
Step-by-step explanation:
To find out how many groups of riders there will be, you need to divide the total number of people waiting in line by the maximum number of people allowed on the ride at one time.
157 (total people in line) ÷ 17 (people allowed per ride) = 9.235 (groups of riders)
Because you can't have a fraction of a group, you need to round down to get the whole number of groups.
So the answer is 9 groups of riders.
which graph represents the function y=-2cos(2πx)
Answer:
Step-by-step explanation:
When it comes to graphing a trigonometric function we use the amplitude, period, vertical shift and these values all help our graph come together to give us our final answer.
In this case,
The amplitude=2
period=1
and there is no phase / vertical shift.
2. Kasie lives in Seattle. She can see her house from the observation deck of the Seattle Space Needle. The
observation deck is 520 feet above the ground and the angle of depression from the deck to her house
is 70. What is the direct distance from the base of the Space Needle to Kasie's house? Round your
answer to the nearest foot.
Direct distance from the base of the Space Needle to Kasie's house = 1429 feet.
What is angle of depression?The angle of depression is the angle between the horizontal line and the observation of the object from the horizontal line. It is basically used to get the distance of the two objects where the angles and an object's distance from the ground are known to us.
Given,
Height of the observation deck AB = 520 feet
Angle of depression = 70°
Distance of the Space needle base to house BC = ?
By the figure,
tan70° = AB/BC
BC = tan70°(AB)
BC = 2.7475(520)
BC = 1428.7 feet
Distance of the Space needle base to house to nearest foot = 1429 feet
Hence, 1429 feet is the distance between base of the Space Needle to Kasie's house.
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Toby has a strawberry lace that is 36 cm long ar He needs pieces 18 mm long to decorate a cake. How long is the lace in mm? How many 18 mm pieces can he cut from the lace? help⭐⭐⭐⭐⭐
Answer:
The lace is 36 cm long and 1 cm = 10 mm. So, 36 cm = 360 mm.
He can cut the lace into 18 mm pieces, so he can cut 360 mm / 18 mm = 20 pieces of 18 mm lace from the 36 cm lace.
If f(x)= |a³-31 |. then f(-1) is equivalent to
The value of f(-1) is either a³ - 31 or the absolute value of a³ - 31, depending on the value of a³ - 31.
We substitute -1 for x in the function: f(-1) = |a³ - 31| To find the value of f(-1), we need to find the value of a³ - 31. If a³ - 31 is positive, then |a³ - 31| will be equal to a³ - 31. If a³ - 31 is negative, then |a³ - 31| will be equal to the absolute value of a³ - 31 (which is the positive value of a³ - 31).So, the value of f(-1) is either a³ - 31 or the absolute value of a³ - 31, depending on the value of a³ - 31.It is not possible to find the exact value of f(-1) without knowing the value of a.
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a car is travelling at 18.1m/s with a constant acceleration of 3.7m/s^2. the car is attempting to pass a truck which is moving at a constant velocity of 29.7m/s. how far in meters must the car travel until it matches the trucks velocity
Answer:
Step-by-step explanation:
?
The car must travel a distance of 130.7 meters. This can be determined by using the equation for distance travelled with a constant acceleration:
Distance = Initial Velocity x Time + (1/2) x Acceleration x Time^2
In this case, the initial velocity is 18.1m/s, the acceleration is 3.7m/s^2, and the final velocity is 29.7m/s. We can set the final velocity equal to the initial velocity and solve for time:
29.7m/s = 18.1m/s + 3.7m/s^2 x Time
Time = 5.4 seconds
We can then plug this value for time into the equation for distance:
Distance = 18.1m/s x 5.4s + (1/2) x 3.7m/s^2 x 5.4s^2
Distance = 130.7 meters
Caitlyn wants to determine what percent of her trail mix is chocolate pieces, so she counts out exactly how many eacch item are in her bag. There are 28 raisins 28 chocolate pieces and 24 peanuts what percent of pieces in the trail mix are chocolate?
well, there are 28 + 28 + 24 = 80 pieces total, or namely that's the 100%, and we know that 24 of those are chocolates
[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 80 & 100\\ 24& x \end{array} \implies \cfrac{80}{24}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{ 10 }{ 3 } ~~=~~ \cfrac{ 100 }{ x }\implies 10x=300\implies x=\cfrac{300}{10}\implies x=30[/tex]
To figure out what percentage of the trail mix is chocolate, we add up all the pieces, divide the number of chocolate pieces by the total and multiply by 100. In this case, we find that 35% of the trail mix is chocolate.
Explanation:In order to figure out the percent of chocolate pieces in Caitlyn's trail mix, we first need to determine the total number of pieces. Caitlyn counts 28 raisins, 28 chocolate pieces, and 24 peanuts, which gives us a total of 80 pieces in the mix. Then, since there are 28 chocolate pieces, we divide 28 (chocolate pieces) by 80 (total pieces). This will give us the decimal representation of the portion of the mix that is chocolate. To convert this into a percentage, we multiply by 100. Hence, the calculation will be (28/80)*100 = 35%. So, 35% of the trail mix is chocolate.
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Marco budgets $1,600 a month for expenses.
According to the graph, how much does he pay
for his credit card, groceries, and rent?
$1,008
$908
$1,142
$1,029
Marco pays $64 for credit card, $272 for Groceries and $672 for rent
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given that Marco budgets $1,600 a month for expenses.
According to the graph he pays 4% of credit card
Now let us find 4% of 1600
4/100×1600
0.04×1600
$64 Marco pays for credit card.
From graph, he pays 17% for groceries
17% of 1600
17/100×1600
0.17×1600=$272
$272 Marco pays for Groceries.
From graph, he pays 42% for rent
42/100×1600
0.42×1600=672
$672 Marco pays for Rent.
Hence, Marco pays $64 for credit card, $272 for Groceries and $672 for rent
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Please look at the picture and answer the question thank you
Answer:
f(-4) = -36
Step-by-step explanation:
Step-by-step explanation:
A function assigns the value of each element of one set to the other specific element of another set. The value of the function when the value of x is -4 is 92.
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
Given that F(x)=3x²-10x+4, therefore, the value of the function can be calculated by substituting the value of x as -4.
Therefore, the value of the function when the value of x is -4 can be calculated as shown below,
F(x) = 3x² - 10x + 4
F(-4) = 3(-4)² - 10(-4) + 4
= 3(16) + 40 + 4
= 48 + 40 + 4
= 92
Hence, the value of the function when the value of x is -4 is 92.
PLEASE HELP AGAIN!!!!!!!!!!
The constant of proportionality from the graph is 5.
What is constant of proportionality?Firstly, there is proportional relationship.
Two values x and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.
The constant k is called constant of proportionality.
The proportional relationship between x and y can be written symbolically as
[tex]x \propto y[/tex]
That middle sign is called sign of proportionality.
To find the constant of proportionality:
We can see that for every 1 unit we move to the right on the x- axis (positive), the line moves up 5 units.
Divide the change on y by that change on x:
5/1=5
For the next point;
10/2=5
Therefore, the proportionality constant will be 5
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Please help me with this question.
The matrix products are given as follows:
a. AB = [58 -6 24]
[18 63 45]
[-22, -39, -33]
b. BA = [32 -26]
[10 56]
The addition A + B is not possible to obtain, the matrices have different dimensions.
How to multiply the matrices?The dimensions of each matrix are given as follows:
A = 3 x 2.B = 2 x 3.Hence the dimensions of each product are given as follows:
AB = 3 x 3.BA = 2 x 2.To multiply matrices, the rows of the first are multiplied by the columns of the second, hence matrix AB is obtained as follows:
Row 1, column 1: -7(-6) + 4(4) = 58.Row 1, column 2: -7(-2) + 4(-5) = -6.Row 1, column 3: -7(-4) + 4(-1) = 24.Row 2, column 1: -9(-6) - 9(4) = 18.Row 2, column 2: -9(-2) - 9(-5) = 63.Row 2, column 3: -9(-4) - 9(-1) = 45.Row 3, column 1: 7(-6) + 5(4) = -22.Row 3, column 2: 7(-2) + 5(-5) = -39.Row 3, column 3: 7(-4) + 5(-1) = -33.Hence the matrix AB is given as follows:
AB = [58 -6 24]
[18 63 45]
[-22, -39, -33]
Matrix BA is obtained as follows:
Row 1, Column 1: -6(-7) - 2(-9) - 4(7) = 32.Row 1, Column 2: -6(4) - 2(-9) - 4(5) = -26.Row 1, Column 1: 4(-7) - 5(-9) - 1(7) = 10.Row 1, Column 2: 4(4) - 5(-9) - 1(5) = 56.Hence the matrix BA is given as follows:
BA = [32 -26]
[10 56]
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-2x+13<-3 please answer it in a inequality notation and number line
Answer:
x<4
Step-by-step explanation:
_2*+13<_3 take-13 crossing the less sign acting same as equal then with number line, at point 13 go 3 steps to the left to get -16 then divide it by-2 to get x<4
 Using the Distributive Property as a good first step to solving the equation, you could simplify to get which of these choices?
7(5x + 2) = -4(6 - 5x)
0
à
Ib
0
O
0
d
e
35x + 14 = -24 - 20x
35x + 14 = -24 + 20x
5x + 14 = 6 + 20x
35x + 2 = -24 - 5x
35x + 2 = 24 - 20x
Show me you work!
Subtract: 2 1/4 - 1 2/3 =
A) 1 7/12
B) 1/3
C) 5/12
D) 7/12
Answer:
D) 7/12
Step-by-step explanation:
The first thing we want to do is find a like denominator for the fraction
Both 4 and 3 go into the multiple 12, so we'll use that
4x3=12
3x4=12
and what you do to one side, you must do to the other so we have
1/4x3= 3/12
2/3x4= 8/12
With that you get 2 3/12 and 1 8/12, which is subtractable
Take one from 2 so that you can make 3/12 15/12
15/12-8/12=7/12
This gives us our answer 7/12
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Don't worry, I gotchya bro :)
2 1/4 - 1 2/3
2 1/4 to an improper fraction is 9/4
1 2/3 to an improper fraction is 5/3
to get the same denominator multiply 9/4 by 3 and 5/3 by 4.
27/12 - 20/12
7/12 IS YOUR ANSWER.
Note: This took my time, brain, and eyes to help. If you can just click one button of brainliest that would mean somthing.
Which expression represents the total area of the rectangle. (look at picture)
Amanda is playing a role-playing game with her friends. She will roll dice to determine if her character unlocks a treasure chest. The probability of her
13
character unlocking the treasure chest is
Find the odds in favor of her character unlocking the treasure chest.
The odds in favor of Amanda unlocking the treasure chest is 1/5.
We have to find the odds in favor of Amanda's character unlocking the treasure chest. Odds in favor is the ratio of the number of favorable outcomes to the number of unfavorable outcomes.
[tex]P (A) = \frac{no.of favorable outcomes}{no. of unfavorable oucomes}[/tex]
P(A), is used to denote the probability of the event A.
Before finding out the odds in favor, we need to find the probability of her unlocking the treasure chest {P(T)}
Total no. of outcomes = 6 (as a dice has 6 sides)
Number of outcomes desired = 1 (that unlocks the treasure chest)
Therefore, the probability of unlocking the treasure chest
P(T) = Number of outcomes desired/ Total no. of outcomes = 1/6
P(T) is our favorable outcome.
Any other outcome would be unfavorable,
Therefore, the number of unfavorable outcomes would be
= Total no. of outcomes - number of the desired outcomes = 6-1 = 5
Thus, applying the formula for P(A)
P(A) = no. of favorable outcomes/ no. of unfavorable outcomes
= 1 / 5 (Ans)
Thus, the odds in favor of Amanda unlocking the treasure chest is 1/5.
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Suppose I deposit $500 into my bank account that earns 3% interest per year. Is the total amount in my bank account per year a linear relationship? Hint: use a table of values and look at the rate of change. Also, keep in mind that once you earn interest, the next year you will earn interest not only on your original investment but on the new amount.
Answer:
The total amount in your bank account per year is not a linear relationship, it's compound interest.
Step-by-step explanation:
The total amount in your bank account per year is not a linear relationship because it is not a straight line. Linear relationships are defined by an equation in the form of y = mx + b, where m is the slope of the line, x is the independent variable and y is the dependent variable, and b is the y-intercept.
In this case, the total amount in your bank account per year is not a straight line, it is a curve. The total amount in your bank account will increase as a function of time, but the rate of increase is not constant as it is with linear relationships.
The amount of money in your account will increase over time as the interest is compounded. The interest is calculated on the principal + accumulated interest, so the growth rate of the account is not constant, it increases as the balance grows.
For example, the first year you will earn $5000.03 = $15 in interest, and the second year you will earn $5150.03 = $15.45 in interest, the next year the interest will be $530.45*0.03 = $15.91 and so on.
