Answer:
Step-by-step explanation:Le quedo +10$
Ya que
-65 y le regalaron +10
Please help! half of the passengers on a train are 6 years old, 1/10 are 7 years old, 1/5 are 8 years old, and 1// are 9 years old. what is the expected value?
Answer:
10/10
Step-by-step explanation:
you take every number to 10 like half is 5/10. the 8 year olds are 2/10. so 5+1+2+2 = 10/10 so the buss is full.
Patricia and Sandra have some apples.
Patricia says to Sandra, "If you give me 14 of your apples, I will have twice the number of apples left with you".
Sandra replies, "if you give me 14 of your apples I will have the same number of apples left with you".
Find the the number of apples with Patricia and Sandra separately.
Answer:
28
Step-by-step explanation:
Because 14 times 2 is 28, and 28 divided by 2 is 14.
A colony of bacteria grows by 5% every hour. How long does it take for the colony t
double in size?
Answer: 20 hrs
Step-by-step explanation:
What is the surface area of the three-dimensional figure?
The surface area of the unfolded prism is 77 square inches.
How to determine the surface area of an unfolded solid
Herein we find a representation of an unfolded right prism with an isoceles triangle cross area, the surface area is the sum of the areas of all faces of the solid. There are a rectangle, two squares and two isosceles triangles as faces of the prisms. The area formulas for each expression are described below:
Rectangle
A = b · h
Where:
b - Base, in inches.h - Height, in inches.Isosceles triangle
A = (1 / 2) · b · h
Square
A = l²
Where l is the side length, in inches.
Now we proceed to determine the surface area of prism:
A = 2 · (5 in)² + (3 in) · (5 in) + 2 · (1 / 2) · (3 in) · (4 in)
A = 50 in² + 15 in² + 12 in²
A = 77 in²
The prism has a surface area of 77 square inches.
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Find the missing number so that the equation has no solutions.
5x + 7 = ?x + 5
Answer: 5
Step-by-step explanation:
If the missing number is 5 we can write the equation
5x + 7 = 5x + 5
Subtract by 5x on both sides
7 = 5
7 does not equal have so we know it has no solutions.
mr sharma has 3/4 pounds of swiss cheese and 2/3 pounds of cheddar cheese. he uses 1/4 of the swiss cheese and 1/2 of the cheddar cheese. how many pounds of cheese does mr sharma use
The pounds of cheese that Mr Sharma used is 25 / 48 pounds
How to calculate the value?From the information, Mr sharma has 3/4 pounds of swiss cheese and 2/3 pounds of cheddar cheese. he uses 1/4 of the swiss cheese and 1/2 of the cheddar cheese.
The cheese that was used will be:
= (1/4 × 3/4) + (1/2 × 2/3)
= 3/16 + 1/3
= 9/48 + 16/48
= 25 / 48
He used 25/48 pounds.
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18. Aaron bought 132 inches of wire. He
cut the wire into 9 pieces that were the
same length. What was the length of
each piece of wire? (Show work)
Select all expressions that are equivalent to the following: 6x - 2 - 8x + 13
Answer:
-2x + 11
Step-by-step explanation:
13 - 2 = 11
6x - 8x = -2x
please help asap
math question
Answer:
f(x) = [tex](\frac{1}{4}) ^{x}[/tex]
Step-by-step explanation:
the exponential function is of the form
f(x) = [tex]a^{x}[/tex]
to find a substitute the point (2, [tex]\frac{1}{16}[/tex] ) from the graph into f(x)
[tex]\frac{1}{16}[/tex] = a² ( take square root of both sides )
a = [tex]\sqrt{\frac{1}{16} }[/tex] = [tex]\frac{1}{4}[/tex] , then
f(x) = [tex](\frac{1}{4}) ^{x}[/tex]
A bag contains 9 red marbles, 6 white marbles, and 7 blue marbles. You draw 3 marbles out at random, without replacement. Find the following probabilities and round to 4 decimal places. a. The probability that all the marbles are red is b. The probability that none of the marbles are red is
For the given set of marbles at random draw 3 marbles without replacement then the probability of withdrawing all marbles are red is equal to 0.0545 and none of the given marbles are red is equal to 0.2378.
As given in the question,
Total number of marbles in a bag = 9 red + 6 white + 7 blue
= 22 marbles
Number of marbles drawn from a bag without replacement = 3
Probability of all the three marbles are red without replacement :
First marble is red = 9 /22
Second marble is red = 8 /21
Third marble is red = 7/20
Required probability of all marbles are red
= (9/22) (8/21)(7/20)
= 504/ 9240
= 0.0545 (round off to 4 decimals)
Probability of all the three marbles are not red without replacement :
First marble is not red =(1- 9 /22)
= 13/22
Second marble is not red = 1- (8 /21)
= 13/21
Third marble is not red = 1- (7/20)
= 13/20
Required probability of all marbles are not red
= (13/22) (13/21)(13/20)
= 2197/ 9240
= 0.2378 (round off to 4 decimals)
Therefore, for the given set of marbles at random draw 3 marbles without replacement then the probability of withdrawing all marbles are red is equal to 0.0545 and none of the given marbles are red is equal to 0.2378.
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What is 1 1/2 + 2 3/5 =
Answer:4 1/10
Step-by-step explanation:
What is a rational number between 4/9 and 6/11
What does this mean in the context of the situation?
The value of h(46) is 168.13.
h(46) means the height of a female whose femur has a length of 46 is 168.13
What is the value of H(46)?The equation that can be used to determine height is a linear function. A linear function is a function that increases at a constant rate. A linear function has a single variable that is raised to the power of one.
The given equation is: h(x) = 61.41 + 2.32x
Where:
61.41 = intercept 2.32 = slope x represents the length of the femurh(46) means the height of a female whose femur has a length of 46.
61.41 + 2.32(46)
61.41 + 106.72 = 168.13
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PLEASE HELP!
100 POINTS + BRAINLIEST IF CORRECT
Answer:
a = 0
b = 0
c = 0
Step-by-step explanation:
Bruce wants to make 50 ml of an alcohol solution with a 12% concentration. He has a 10% alcohol solution and a
15% alcohol solution.
The equation 0.10x + 0.15(50 -x) = 0.12(50) can be used to find the
solution Bruce should use.
amount of 10% alcohol
How much of the 10%
alcohol solution should Bruce use?
mL
How much of the 15% alcohol solution
should Bruce use?
mL
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What does a math multiple mean?In mathematics, multiples are the results of multiplying an integer by a certain number. Examples of multiples of 5 are 10, 15, 20, 25, 30, etc. There are several 7s, including 14, 21, 28, 35, 42, and 49.Identify a few three-digit multiples now. Skip counting is a simple method for remembering the multiples of single-digit integers.
What is it Equation explain ?A mathematical statement known as an equation is made up of two expressions joined together by the equal sign.. A formula would be 3x - 5 = 16, for instance. After solving this equation, we learn that the value of the variable x is 7.
You need 50 cc of a 12% alcohol solution.
We need 50 cc of the 12% alcohol solution, which we have at 10% and 15%.
Two equations were constructed: x = 10% volume and y = 15% volume.
a) x + y = 50
b) 50 ml at 12%, or.12 * 50, is equal to.1x +.15y = 6.0.
dividing equation "a" by -.1 and adding it to equation "b"
a) -.1x -.1y = -5
b) .1x +.15y = 6.0
.05y = 1
X would equal 30 ml of 10% since y = 20 ml of 15%.
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Im tryin to get ready for the test
Answer:
Sentence: I’m trying to get ready for a test
Add on: I will pass
Step-by-step explanation:
Find an equation of the line described. Write the equation in slope-intercept form if possible.
Slope −2, through (−5, −2)
In parallelogram EFGH, the measure of angle G is (4x + 16)° and the measure of angle H is (2x - 16)°. What is the measure of angle H?
32°
44°
88°
136°
The measure of angle H is 44°. in the parallelogram.
What is parallelogram?
A unique variety of quadrilateral made up of parallel lines is known as a parallelogram. A parallelogram can have any angle between its adjacent sides as long as its opposite sides are parallel. If two opposite sides of a quadrilateral are parallel and congruent, it will be a parallelogram. Consequently, a quadrilateral in which both pairs of opposite sides are parallel and equal is known as a parallelogram.
We can solve this easily using alternative interior angles. A parallelogram's interior is always 360 degrees, right?
(4x + 16)° + (2x - 16)° = 180
6x = 180
x = 180/6 = 30
So the angle H = 2*30 - 16 = 44°
To visualize the parallelogram, drawing it out is always helpful. Greg S., a widely renowned mathematician who specializes in geometry, says the answer is 44 degrees.
Hence The measure of angle H is 44°.
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Eli is building a stage, which is shaped like a trapezoid. The bases are 7.8 and 5 yards, and the height
is 7 yards. How many square yards large is the stage?
Answer:
44.8 square yards
Step-by-step explanation:
Area of trapezoid:a = 7.8 yds
b = 5 yds
h = 7 yds
[tex]\sf \boxed{\bf Area \ of \ trapezoid = \dfrac{(a +b)*h}{2}}[/tex]
Here, a and b are the parallel lines and h is the height between the parallel lines.
[tex]\sf = \dfrac{(7.8+5)*7}{2}\\\\= \dfrac{12.8*7}{2}\\\\=6.4*7\\\\=44.8 \ square \ yards[/tex]
Find the missing angles
First picture answer:
⇒Sum of interior angles of a triangle is 180°,this means that ∠1 +37°+24°=180°
[tex]< 1+61=180\\ < 1=180-61\\ < 1=119[/tex]
⇒m∠1=119°
______________________________________________________
Second picture answer:
⇒An exterior angle of a triangle is created by extending one side of the triangle.
⇒ Exterior angle at this point is m∠1
⇒If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.
⇒The two interior angles at this point are 76° and 52°
⇒The statement above just means m∠1=76°+52°
m∠1=128°
______________________________________________________
Third picture answer:
⇒If a side of a triangle is produced, then the exterior angle so formed is equal to the sum of the two interior opposite angles.
⇒The exterior angle at this point is 104° and the two interior angles are 79° and m∠1
⇒The statement above means that
104°=m∠1 +79°
⇒Let us solve for the unknown angle m∠1
m∠1=104°-79°
m∠1=25°
4. An average cigarette contains 1.5 mg of nicotine. The average smoker
smokes 15 cigarettes a day. How much nicotine does the average
smoker inhale a day?
Answer:
22.5 mg of nic
Step-by-step explanation:
1.5*15=22.5mg
don't smoke kids! (idc)
Does anybody know this!
Every month, the bank withdraws $15 from Betsy's checking account as a service fee. Betsy has budgeted $75 for the next few service fees. For how many months will the service fee be covered?
The number of months that betsy has for $75 is 5 months
How we calculate the price of a battery when have a price of collection of the batteries?When we given a pack of objects with some cost, then to calculate the price of one object, divide the amount of pack by number of objects in the pack.
According to given data in the question:Question said that every month, the bank withdraws $15 from Betsy's checking account as a service fee.
But betsy has $75 for few month
Then number of months = $7/15= 5 months
Thus, number of months for $75 is 5.
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A developer of a new subdivision offers a
prospective home buyer a choice of 4 designs, 3 differ-
ent heating systems, a garage or carport, and a patio or
screened porch. How many different plans are available
to this buyer?A developer of a new subdivision offers a
prospective home buyer a choice of 4 designs, 3 differ-
ent heating systems, a garage or carport, and a patio or
screened porch. How many different plans are available
to this buyer?
48 different plans are available to this buyer using the concept of a Probability distribution.
What is Probability?
Calculating the likelihood of experiments happening is one of the branches of mathematics known as probability. We can determine everything from the likelihood of receiving heads or tails when tossing a coin to the likelihood of making a research blunder, for instance, using a probability. It is crucial to grasp this branch's most fundamental concepts in order to fully comprehend it, including the formula for computing probabilities in equiprobable sample spaces, the likelihood of two events joining together, the probability of the complementary event, etc.
According to the question:
Number of different plans available
= no of designs ×no of different heating systems× 2 × 2
So, we have:
no of designs = 4;
no of different heating systems= 3;
So, substituting the value we get:
= 4 × 3 × 2 × 2
= 48
Hence,
48 different plans are available to this buyer.
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TRANSLATING and SOLVING Equations
“The product of a number and -7 is 63”
Equation:
Answer:
9
Step-by-step explanation:
mx-7=63
m times -7=63
A standard game of Monopoly includes 20 orange $500 bills, 20 tan $100 bills, 30 green $50 bills, 50 blue $20 bills, 40 of each of the $5, $10, and $1 bills. What is the probability that I randomly pick a $50 bill from the pile? what is the answer.
Answer: 30/240 = 1/8
Step-by-step explanation: There are 30 $50 bills and 240 total. There is a 30/240 chance that the bill you pick is a $50 bill. To simplify the fraction - 1/8.
Leaves and acorns are falling from the trees, but to work out the exact number of each you need to solve the following equation.
If l number of leaves = 46, what does a (acorns) equal?
l + 3a = 145
Using the equation, the number of acorns that fell if 46 leaves fell is 33.
How to find the number of acorns?Leaves and acorns are falling from the trees. To work out the exact number of each you need to solve the following equation.
l + 3a = 145
where
l = number of leavesa = number of acornsLet's find the number of acorns that fell if 46 leaves fell off from th tree.
Therefore,
l + 3a = 145
46 + 3a = 145
3a = 145 - 46
3a = 99
divide both sides by 3
a = 99 / 3
a = 33
Therefore,
number of acorns = 33
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Given f and g in the graph, what is f(g(2)) ?
The required value of function f(g(2)) = 1.
What is a composite function?
When the result of one function is utilized as the input for another, this is known as a composite function.
Typically, a composite function is a function that is embedded within another function. The process of creating a function involves replacing one function for another.
Given, to find the value of the given function f(g(2))
First, we need to find the value of g(2) from the given graph
i.e. g(2) = 4 (i.e. x = 2)
Then, the above value is an input for function f.
So, f(4) = 1 (from the graph at x = 4)
Hence, the value of function f(g(2)) = 1.
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ZLE Add one set of parentheses to the expression 7x+3+8x+3x+8-9 so that it is equivalent to 2(9x + 10).
U EE ET² T₂
The expression should be added by 18 so the expression will be equivalent to the 2(9x+10).
Given that,
The expression is 7x+3+8x+3x+8-9.
We have to equivalent the given expression to the 2(9x+10).
Take the expression,
7x+3+8x+3x+8-9
Write in order the variable terms first and next constant.
7x+8x+3x+3+8-9
Now, Adding the variable terms
18x+3+8-9
Now, Adding or subtracting the constant.
18x+2 ----->equation(1)
Take this as equation (1)
Now take the another expression.
2(9x+10)
18x+20----->equation(2)
Take this as equation (2)
The equation(1) is not equal to equation (2)
If we add 18 to the equation (1) we get equation (2)
18x+2+18
18+20
Therefore, The expression should be added by 18 so the expression will be equivalent to the 2(9x+10).
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Mr Corona sells magazines part time. He is paid a monthly commission.
The total commission of Mr. Corona will be equal to $417.62
What is commission?
A commission is a proportion of all sales.
total sales x rate of commission equals commission.
Multiply the commission rate by the total sales to get the commission on a sale. Recall to convert the commission rate from a percent to a decimal first, just as we did for computing the sales tax.
As given in the question,
Mr. Corona receives 21% of the first $1500,
which he exceeded, so he will receive 21% x $1500 = 0.21 x $1500 = $315
He will receive 14$ of the amount over $1500,
which is $2233 - $1500 = $733
Out of this amount, he will be paid $733 x 14% = $733 x 0.14 = $102.62
Therefore, The total commission will be $315 + 102.62 = $417.62
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Complete Question
Mr. Corona sells magazines part time. He is paid a monthly commission. He receives 21% of his first 1,500 in sales and 14% of the balance of his sales. Last month he sold 2,233 worth of magazine subscription. How much commission did he earn last month?
