Thien and her friends earned $80 washing cars. Thien received $30 from this amount.What is Thien's share as a percentage of the total amount earned?

Answers

Answer 1

Answer: 37.5%

You can just do 30/80

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A cube has an edge of 3 feet. The edge is increasing at the rate of 4 feet per minute. Express the volumeof the cube as a function of m, the number of minutes elapsed.
Hint: Remember that the volume of a cube is the cube (third power) of the length of a side.

Answers

The volume of the cube can be expressed as a function of m, the number of minutes elapsed as V(m) = (3 + 4m)³ feet³.

What do we mean by volume?

The volume of an object is the total space occupied by the object in the three-dimensional space.

How do we solve the given question?

In the question, we are asked to express the volume of a cube as a function of m, the number of minutes elapsed. We are given that the initial length of the edge of the cube was 3 feet, and it increases at a rate of 4 feet per minute.

∴ We can say that the length of the edge after m minutes = 3 + 4m

As 4 feet is the increase per minute and m minutes have elapsed.

We know, that the volume of a cube is the cube of the length of the edge.

∴ The volume = (3 + 4m)³.

Hence, the function of the volume of the cube in m can be written as,

V(m) = (3 + 4m)³ feet³.

Learn more about volumes at

brainly.com/question/4293592

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Answer:

so it increases by 4 per minute

the volume of a cube is v=side^3

so the side length be 5+4m where m is the number of minutes

therefor the volume can be expressed as V(m)=(5+4m)³

Step-by-step explanation:

A veterinarian needs to know an animal’s weight in kilograms when treating them. If 20 pounds is about 9 kilograms and a dog weighs 30 pounds determine the dog’s weight in kilograms.

Answers

1 kilo is approximately 2.2 pounds, so we can divide 30 by 2.2

Please please help me!!solve the system of equations.
{ x= 3y + 4
{3x - 9y = 12

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. There is one solution. The solution of the system is __ ( simplify your answer. Type an ordered pair.)
B. The solution set of the system {(x,y)| x = 3y+4}.
C. The solution set is ∅.

Answers

Answer:

infinite solution

Step-by-step explanation:

if substitute 3y+4Into 3x your equation should be 3(3y+4)-9=12 then you multiply and combine like terms then your answer should be 12=12 which is a true statement meaning it has infinite solutions

Two cars are traveling at 40 and 50 miles per hour, respectively. If the second cars out 5 miles behind the first car. How long will it take the second car to overtake the first car.

Answers

Hello There,

distance = rate x time
5 + 40x = 50x
5 = 10x
x = 1/2 hr

Hope this helps

PLSSS HELPPPPP MEEEE III WILLL GIVVVEEE BRAINLIESTTTT!!!!!!

Answers

They are equal, 8 x 7 = 56 and 7 x 7 = 49

A hat contains cards with different colors.Annabella randomly selects a card from
the hat and returns the card to the hat
after noting the color. After randomly
selecting a card 300 times, she has picked
a purple card 70 times. Based on her
results, what is the estimated probability
that Annabella selects a purple card?
A 7/37 B 7/30 C 7/23 D 23/30

Answers

Answer:

B 7/30

Step-by-step explanation:

P (Purple) = 70 / 300 = 7/ 30

Answer:

Step-by-step explanation:

Purple-70/300=7/30

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An expression is shown below (x^4/3)(x^2/3)

Help help please I dont know how to do this

Determine which consecutive integers do not have a real zero of f(x) = x^3 + 9x^2 + 8x – 5 between them.A.) (–8, –7)B.) (4, 5)C.) (0, 1)D.) (–2, –1)

If f(x) = 2x2 +5./(x-2), complete the following statement:f(0) =