Since at 8am Chris goes out on his moped averaging 15mph, the time Chris catches up with Fadi is at 10 am.
How to find the time will Chris catch up with Fadi?Since Fadi set out at 5am on his bike averaging at 6mph, the distance Fadi travels is d = vt where
v = Fadi's speed = 6 mph and t = time.So, Fadi's distance d = vt
= 6t
Now, At 8am Chris goes out on his moped averaging 15mph, the distance Chris travels is D = v't' where
v = Chris' speed and t = Chris' time of travel.So, Chris' distance D = v't'
= 15t'
Also, since Fadl sets out at 5 am on his bike and Chris goes out on his moped at 8 am, Chris sets out 8 am - 5 am = 3 hrs later.
So, Chris' time of travel t' = t - 3
So, Chris' distance D = 15t' = 15(t - 3)
Now, Chris will catch up with Fadi when they both cover the same distance
So, d = D
6t = 15(t - 3)
6t = 15t - 45
6t - 15t = -45
-9t = -45
t = -45/-9
t = 5 hours
Since Chris's time is t' = t - 3, substituting t = 5 into the equation, we have
t' = 5 - 3
= 2 hours
So, Chris catches up with Fadi 2 hours later at 8 am + 2 hours = 10 am.
So, the time Chris catches up with Fadi is at 10 am.
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Four options are given below. Three of these options are similar to each other because they follow the
same pattern. Identify the option that is dissimilar to the other three.
1) AE6
2) FD10
3) AD6
4) DE9
The answer choice which is dissimilar to the other three as given in the task content is Choice 3; AD6.
Which of the four options as given in the task content is dissimilar to the rest of the answer choices?It follows from the task content that the answer choice which is dissimilar to the rest of the answer choices be identified.
From observation, the letters of the alphabet are assigned numbers and the sums are determined such as follows;
A = 1, E= 5, so that AE corresponds to (1+5) = AE6.F = 1, D= 5, so that FD corresponds to (6+4) = 10.A = 1, D= 4, so that AD corresponds to (1+4) = AD5. Hence, it is the dissimilar answer choice among the other answer choices.D = 1, E= 5, so that AE corresponds to (4+5) = DE9.The answer choice which is dissimilar to the other three as given in the task content is Choice 3; AD6.
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If x varies inversely as y, then find the constant of variation if y = 9 and x =
8.
The constant of variation is 72.
Constant of Variation: What is it?In a direct variation, the constant of variation is the constant (unchanged) ratio of the two variables. The formula for direct variation is. where k is the variational constant and y=kx (or y=kx).
being that
x = 8
y = 9
If x varies in opposition to y, then
x*y = fixed
which means
x*y = k (where we assume constant as k) (where we take constant as k)
Inputting the values of x and y now yields,
8*9 = k
72 = k
Consequently, 72 is the constant of variation.
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need a bit of help this is confusing me
90 in²
Step-by-step explanation:Area is the amount of space a 2-D shape occupies.
Area Formula
As stated above, the area of a triangle is [tex]\frac{1}{2}bh[/tex]. When solving for area, it doesn't actually matter which side is the base. You just have to remember to take the height perpendicular to the base you use. Since this is a right triangle, the height is the same as one of the legs. For the purpose of this question, I will use 12 as the base and 15 as the height. Because the 12 and 15 sides are perpendicular to each other, we can plug them into the formula for b and h.
Solving For A
Now we can just plug 12 and 15 in and solve.
[tex]\frac{1}{2}*12*15 = 90[/tex]The area of the triangle is 90 in².
LAST QUESTION JUST HELP ME PLS I BEG U
describe a real-world situation where you can apply finding the unit rate
A real-world situation where you can apply the unit rate is finding the cost of a single can of soda from a pack of soda.
How can you use the unit rate?The unit rate refers to the price of a single item out of a number or group of items. It is found by dividing the total price of the group of items by the number of items in the group.
In a real-world scenario, you might see a pack of soda priced at $5.20 and you need to know the price of a single can of soda. You can find this by the formula:
= Price of soda pack / Number of soda cans
= 5.20 / 6
= $0.87
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Two triangles are drawn in the coordinate plane. The vertices of the first triangle are (5, 4), (-4, 6), (-8, 9). The vertices of the second triangle are (1, 6), (-8, 8), (x, y). Find the value of x and y that allow these two triangles to be congruent.
The value of x and y that allows these two triangles to be congruent is
(-12, 11)
What are congruent triangles?The congruence of two or more triangles is determined by the measurements of their sides and angles. The three sides of a triangle determine its size, and the three angles determine its shape.
Two triangles are said to be congruent if the pairs of their corresponding sides and angles are equal. They are the same size and shape. Triangles have numerous congruence conditions.
Here we will use translation to find out units of displacements
If the triangle is congruent then vertices are of same shape too which means coordinate of first triangle will give us coordinate of second triangle
The coordinates of 1st vertices of traingle1 = (5, 4), x = 5, y = 4
The coordinates of 1st vertices of traingle2 = (1, 6), x = 1, y = 6
By subtracting,
translation x = 5 - 1 = 4
translation y = 4 - 6 = -2
Thus the vertices of other triangles are translated 4 units left and 2 units up. Same goes for second vertices
-4 - 4 = 8
6 + 2 = 8
And the same will go for the last vertices (-8, 9) that is
-8 - 4 = -12
9 + 2 = 11
The value of x and y that allow these two triangles to be congruent is (-12, 11)
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guys help me I'm super bad at math patterns so please help
Answer:
The answer is C.
Step-by-step explanation:
We know that the first term is the diamond and the circle so its repeating so that gives you your final answer of C.
Which of the following are functions?
1. y= -3/2x
2. x= 2y - 5
3. x^2 + y^2 = 16
1. Yes. This is the equation of a lihe.
2. Yes. See 1.
3. No. This is the equation of a circle, which fails the vertical line test.
Which equation is equivalent to the statement?
Step-by-step explanation: I hope this helps. the blue, and the purple are in the same line with the green.
Answer:
1
2
A swimming pool has a volume of 256 yd³.
Use the table of conversion facts to find out how many gallons of water it
would take to completely fill the swimming pool.
Round your answer to two decimal places.
The water in gallons to entirely fill the swimming pool is 51705.344 gallons.
What is defined as the conversion factor?A conversion factor is an amount that is used to multiply or divide one set of units into another. When converting to an equal value, the suitable conversion factor must be used. To convert inches to feet, for example, the adequate conversion amount is 12 inches equal 1 foot.For the given question;
The volume of the pool = 256 yd³.
Convert the volume in yd³ in gallons.
1 yd³ = 201.976 gallons.
Thus, for the total volume of 256 yd³ multiply both side with 256.
1×256 yd³ = 201.976×256 gallons.
256 yd³ = 51705.344 gallons.
Therefore, the water in gallons requires to completely fill the swimming pool is 51705.344 gallons.
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-42-3y + 4z = 1
-4y+ 2z = -2
-5z = -5
Find the unique solution to this system of equations. Give your answer as a point. (x, y, z)
The point (x,y,z) = (₋1,3,₋1) is the solution of the equations.
Given the system of equations are:
2x ₊ y ₊ 3z = ₋2 .....eq(1)
x ₋ y ₋ z = ₋3 ...... eq(2)
3x ₋ 2y ₊ 3z = ₋ 12 .... eq(3)
Solving equation 1 and 2.
2x ₊ y ₊ 3z = ₋2
x ₋ y ₋ z = ₋3
Multiply eq(1) by 1 and eq(2) by 2, we get:
2x ₊ y ₊ 3z = ₋2
2x ₋ 2y ₋ 2z = ₋6
⁻ ⁺ ⁺ ⁺
hence sign changes, then we get:
3y ₊ 5z = 4 ... eq(a)
now solving equation 2 and 3.
x ₋ y ₋ z = ₋3
3x ₋ 2y ₊ 3z = ₋ 12
Multiply eq (2) by 3 and eq (3) by 1.
₋3x ₊ 3y ₊ 3z = 9
3x ₋ 2y ₊ 3z = ₋ 12
sign changes, and we get:
y ₊ 6z = ₋3 ..... eq(b)
y = ₋3 ₋ 6z
substitute y value in eq(a)
3(₋3₋6z) ₊ 5z = 4
₋9 ₋ 18z ₊ 5z = 4
₋13z = 13
z = ₋1
substitute z value in eq(b)
y ₊ 6(₋1) = ₋3
y ₋ 6 = ₋3
y = 3
substitute y and z values in eq (2)
x ₋ (3) ₋ (₋1) = ₋3
x ₋ 3 ₊ 1 = ₋3
x ₋ 2 = ₋3
x = ₋3 ₊ 2
x = ₋1
Therefore the solution to the system of equations is: (₋1,3,₋1)
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your question is incomplete.Please find the missing content here:
2x ₊ y ₊ 3z = ₋2
x ₋ y ₋ z = ₋3
3x ₋ 2y ₊ 3z = ₋ 12
Find the unique solution to this system of equations. Give your answer as a point. (x, y, z)
A package of 6 water bottles costs $7.74. How much does each water bottle
cost?
A. $0.74
B. $0.80
C. $1.29
D. $1.74
Plsss help
Answer:
1.29 take the cost and divided by each water bottle and that’ll give you how much each water bottle cost in a pack
Step-by-step explanation:
Determine f(-3) for f(x)
Answer:
9
Step-by-step explanation:
[tex]-3 \leq -3 <4 \implies f(-3)=2(-3)^2-9=9[/tex]
Like terms have the same ______, with each variable raised to the same exponent
Answer:
variable
Step-by-step explanation:
Like terms are the terms that contain same variables raised to the same power, the coefficients need not be same. For example, 7x and 2x are like terms because both terms contain same variable "x".
Rewrite the following polynomials in standard form.
10-x- 7x ²
Answer:
- 7x ² -x +10
Step-by-step explanation:
⇒Given
10-x- 7x ²
⇒We have a polynomial of second degree that has the standard from ax²+bx+c
⇒Rearrange the terms of the polynomial to match the standard form
- 7x ² -x +10
The first three terms of a geometric
sequence are 3, 6, 12.
The next three terms in the geometric sequence will be 24, 48 and 96.
We are given a geometric sequence:
3, 6, 12 …
We need to find the next 3 terms of the sequence.
We can see that:
a = initial term of the sequence
a = 3
r = common ratio between the consecutive terms.
r = 6 / 3 = 2
Now, nth term will be represented by:
aₙ = a rⁿ⁻¹
Substituting the values of a and r in the formula, we get that:
aₙ = 3 (2)ⁿ⁻¹
Now, the 4th term will be ( put n = 4)
a₄ = (3) (2)⁴⁻¹
a₄ = (3) (2)³
a₄ = (3) × (8)
a₄ = 24
The 5th term will be: (put n = 5)
a₅ = (3) (2)⁵⁻¹
a₅ = (3) (2)⁴
a₅ = (3) × (16)
a₅ = 48
6th term will be: (put n = 6)
a₆ = (3) (2)⁶⁻¹
a₆ = (3) (2)⁵
a₆ = (3) × (32)
a₆ = 96
Therefore, the next three terms in the geometric sequence will be 24, 48 and 96.
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Your question was incomplete. Please refer the content below:
The first three terms of a geometric sequence are 3, 6, 12. What are the next three terms?
Answer the questions below. Be sure to mark all answers that apply.
(a) Which numbers are divisible by 9?
(b) Which numbers are divisible by 3?
474 127 907
None of these
There is none of these numbers are divisible by 9 and the required number is 474 divisible by 3 which the correct answer would be an option (D)
What is the divisibility rule?The divisibility rule states that " Divisible By, implies that when two numbers are divided, the result would be a whole number.
The sum of the digits should be divisible by 9
⇒ 474 : (4+7+4=15, and again, 1+5=6)
This number is not divisible by 9
⇒ 127 : (1+2+7=10, and again, 1+0=1)
This number is also not divisible by 9
⇒ 907 : (9+0+7=16, and again, 1+6=7)
This number is also not divisible by 9
The sum of the digits should be divisible by 3
⇒ 474 : (4+7+4=15, and 15÷3 = 5)
This number is divisible by 3
⇒ 127 : (1+2+7=10, and 10÷3 = 3.333)
This number is not divisible by 3
⇒ 907 : (9+0+7=16, and 16÷3 = 5.333)
This number is not divisible by 3
There is none of these numbers are divisible by 9 and the required number is 474 divisible by 3 which the correct answer would be an option (D)
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The question seems to be incomplete the correct question would be
(a) Which numbers are divisible by 9?
(A). 474
(B). 127
(C). 907
(D). None of these
(b) Which numbers are divisible by 3?
(A). 474
(B). 127
(C). 907
(D). None of these
HELP (20 points) using triangle ABC how does extending vertex c further away to the left of vertex b verify the relationship between sides and angles in triangles?
Answer:
a stays the same but cb cahanges
Step-by-step explanation:
A hairdresser is making 4 hair bows. She needs 13/16 yards for each bow. If she has 6 1/8 yards of ribbon, how much will be leftover after making the bows?
Answer:
2 7/8 yards
Step-by-step explanation:
Given 6 1/8 yards of ribbon, you want the leftover amount after making 4 bows that use 13/16 yards each.
Quantity usedIf each of 4 bows takes 13/16 yards, the amount required for bows is ...
4×13/16 = 13/4 . . . . yards
Quantity remainingThe amount left over is the difference between the starting amount and the amount used:
6 1/8 - 13/4 = 49/8 -26/8 = 23/8 = 2 7/8
The hairdresser has 2 7/8 yards of ribbon remaining.
__
Additional comment
Your calculator can work this problem, too.
Find the derivative of: 3x^5+5x^9
Answer:
[tex]\dfrac{\text{d}y}{\text{d}x} =15x^4+45x^8[/tex]
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{4.8 cm}\underline{Differentiating $ax^n$}\\\\If $y=ax^n$, then $\dfrac{\text{d}y}{\text{d}x}=nax^{n-1}$\\\end{minipage}}[/tex]
[tex]\textsf{Differentiate $y$ with respect to $x$}:[/tex]
[tex]\begin{aligned}y & = 3x^5+5x^9\\\\\implies \dfrac{\text{d}y}{\text{d}x} & = 5 \cdot 3x^{5-1}+9 \cdot 5x^{9-1}\\\\& = 15x^4+45x^8\end{aligned}[/tex]
[tex]\textsf{Therefore, the derivative of $y$ with respect to $x$ is: $\dfrac{\textrm{d}y}{\textrm{d}x} =15x^4+45x^8$}[/tex]
π=7x−2y
Solve the equation for y. Leave your answer in terms of π.
y=
If correct Brainliest + 100 points
Answer:
[tex]y=\dfrac{7x}{2}- \dfrac{\pi}{2}[/tex]
Step-by-step explanation:
Given equation:
[tex]\pi=7x-2y[/tex]
To isolate y, add 2y to both sides:
[tex]\implies\pi+2y=7x-2y+2y[/tex]
[tex]\implies\pi+2y=7x[/tex]
Subtract π from both sides:
[tex]\implies\pi+2y - \pi=7x- \pi[/tex]
[tex]\implies 2y=7x- \pi[/tex]
Divide both sides by 2:
[tex]\implies \dfrac{2y}{2}=\dfrac{7x}{2}- \dfrac{\pi}{2}[/tex]
[tex]\implies y=\dfrac{7x}{2}- \dfrac{\pi}{2}[/tex]
This can also be written as a rational function:
[tex]\implies y=\dfrac{7x- \pi}{2}[/tex]
Answer:
y = (-π + 7x)/2
Step-by-step explanation:
Now we have to,
→ find the required value of y.
The equation given is,
→ π = 7x - 2y
Then the required value of y will be,
→ π = 7x - 2y
→ -2y = π - 7x
→ y = (π - 7x)/(-2)
→ [ y = (-π + 7x)/2 ]
Hence, the equation is (-π + 7x)/2.
Find the equation of the line through the points (3/5,2) and (6,−1). Write your answer in the form y=mx+b.
0.48
Step-by-step explanation:
To find the gradient when given points, label one of the x points as X2 and the other x1 ( it could be anyone of them: 3 could be X2 and 6 x1 or vise versa) and do the same with the y points, doesn't matter which one is y2 or y1.
But bare in mind, if you used the first coordinate x as x1 you must used the y coordinate as the y1. you must use the same order. so if you used X2 for second coordinate use y2 for the y point of the second coordinate.
Now set up the formula: x2-x1/y2 -y1
=( 3-6)/((-1)-5.2/
=0.48
6 apples and 5 oranges are shared among 3 friends. If the apples are indistinguiable, oranges are also indistinguiable, how many ways can they share these fruits if each friend must have some fruit?
Answer:
Step-by-step explanation:
I would say that nobody gets the last one but every one else gets 2 apples and 1 orange.
Which of the following represents an INEFFICIENT point of production?
a. Point A
b. Point B
c. Point D
d. None
e. Point C
The point that represents an INEFFICIENT point of production is point A.
The correct answer is an option (a)
In this question we have been given a graph of Skateboards vs. Bikes.
We need to find the point that represents an INEFFICIENT point of production.
Inefficient production means the economy can be producing more goods without using any additional resources.
In given production possibility curve, an INEFFICIENT point of production is point A.
Therefore, the point that represents an INEFFICIENT point of production is point A.
The correct answer is an option (a)
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A class has 20 boys and 25 girls, what is the ratio of boys to girls?
Answer:
4:5
Step-by-step explanation:
Boys: 20 Girls: 25
÷5 ÷5
------ ----------
4 5
For every 4 boys, there are 5 girls
I hope this helps!
what is 6/11 as a percentage? thank you :).
Answer: 54.55%
Step-by-step explanation:
Answer:
54.5%
Step-by-step explanation:
Fraction to percent: numerator divided by denominator times 100 and add the percent sign.
A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented by one unit along the x- or y- axis. The ice cream shop is at (-5,4) and the grocery store is at (3,2). The grocer wants to install an overhead delivery cable directly between the grocery store and the ice cream shop to expedite deliveries. What is the length of this cable to the nearest tenth of a blocks?
The length of this cable to the nearest tenth of a block will be 6.3 blocks.
Let one point be (x, y) and another point be (h, k). Then the distance between the points will be
D² = (x - h)² + (y - k)²
A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented by one unit along the x- or y-axis. The ice cream shop is at (5. 4) and the grocery store is at (3.-2).
To speed up deliveries, the grocer plans to set up an overhead delivery wire that runs directly between the grocery store and the ice cream parlor.
The length of this cable to the nearest tenth of a block will be
[tex]D² = (5 - 3)² + (4 + 2)²D² = 2² + 6²D² = 4 + 36D² = 40[/tex][tex]D^2 = (5 - 3)^2 + (4 + 2)^2\\D^2 = 2^2 + 6^2\\D^2 = 4 + 36\\D^2 = 40[/tex]
D = 6.3 blocks
Therefore, The length of this cable to the nearest tenth of a block will be 6.3 blocks.
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The length of this cable to the nearest tenth of a block will be 6.3 blocks.
Let one point be (x, y) and another point be (h, k). Then the distance between the points will be
D² = (x - h)² + (y - k)²
A map of a small town identifies the town square as the origin (0,0). Each block along a street is represented by one unit along the x- or y-axis. The ice cream shop is at (5. 4) and the grocery store is at (3.-2).
To speed up deliveries, the grocer plans to set up an overhead delivery wire that runs directly between the grocery store and the ice cream parlor.
The length of this cable to the nearest tenth of a block will be
[tex]D^2 = (5 - 3)^2+(4+2)^2\\D^2 = 2^2 +6^2\\D^2 = 4 +36\\D^2 = 40[/tex]
D = 6.3 blocks
Therefore, The length of this cable to the nearest tenth of a block will be 6.3 blocks.
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The following table shows the average total cost, measured as dollars expended per pupil, of operating a high school with the given enrollment. This table is based on a study of economies of scale in high school operations from the 1960s.
Enrollment: 170 250 450 650
Average total cost: 538 473 411 415
Estimate the average cost per student for a high school with an enrollment of 350 students.
The interpolated value for an enrollment of 350 students is $ ------
per student.
Answer:
$433
Step-by-step explanation:
You want the average cost per student for an enrollment of 350 students as interpolated from a table of enrollments and costs.
InterpolationThere are a number of ways the cost table might be interpolated. The one used here is to use quadratic regression to write a formula for the cost as a function of enrollment. Then the function value for 350 students is found. This is all accomplished using a graphing calculator, as shown in the attachment. The interpolated value for an enrollment of 350 students is $433 per student.
Another method of interpolation could use linear interpolation between the two nearest points. Our enrollment of interest, 350, is halfway between 250 and 450, so the cost per student could be estimated to be halfway between 473 and 411:
cost per student = (473 +411)/2 = 442 . . . dollars per student
We know this estimate is a bit high, because the cost function is concave upward. A straight line between two points on the curve will lie above the curve.
Other methods of interpolation will give other values. A cubic interpolating function gives a value of $428 per student.
The Miller family just bought 8 crates of eggs, and each crate had 12 eggs. The family already had 7 eggs in their refrigerator. How many eggs do they have now?
Answer:
Can't help
Step-by-step explanation:
I really need someone’s help with this it’s about ratios and proportions
Answer:
different from players, yes
What is the value of x?
Enter your answer in the box.
X =
Answer: x=26 degrees
Step-by-step explanation:
90+x+64=180 ==> A right angle, x, and 64 lie on a straight line. Straight lines add up to 180 degrees and are called straight angles. Right angles are denoted with a tiny square inside them and measure 90 degrees.
90-90+x+64=180-90
x+64=180-90
x+64=90
x+64-64=90-64
x=90-64
x=26 degrees