MATHEMATICS MIDDLE SCHOOL

(Simplify the answer if possible)

5/7-2/5=

Answers

Answer 1
Answer: If you would like to calculate 5/7 - 2/5, you can do this using the following steps:

5/7 - 2/5 = 25/35 - 14/35 = (25 - 14) / 35 = 11/35

The correct result would be 11/35.
Answer 2
Answer: the answer is 11/35
hope i helped

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The circus ringleader, Ms. Evelyn, wants all the employees to have miniature cakes in the shape of either a circus ball or a clown hat. She wants the clown hat dessert and the circus ball dessert to be the same volume. The radius of both cake pieces will be 3 in. What must the height of the clown hat cake be in order for the two cakes to be equal in volume? Round to the nearest hundredth if necessary. Explain or show your work.

Answers

im assuming the hat is a cylinder and the ball is a sphere
volume of cylinder (hat) = pi * r^2 *h
volume of sphere = 4/3 pi r^3
plug in your radius to first find volume of sphere
4/3 * pi * 3^3 = 36pi
set that equal to the formula for cylinder and solve
36pi = pi * 3^2 * h
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rosa wants to use $20 to buy games. The inequality 2.50k+5.50≤20.00 represent the number of games, k, she can buy with her money. What is the greatest number of games Rosa can buy?

Answers

Answer:

The greatest number of games Rosa can buy is 5

Step-by-step explanation:

Let

k ----> the number of games, k, that Rosa can buy with her money

we have

2.50k+5.50\leq 20.00

solve for k

subtract 5.50 both sides

2.50k\leq 20.00-5.50

2.50k\leq 14.50

divide by 2.50 both sides

k\leq 5.8\ games

therefore

The greatest number of games Rosa can buy is 5

Jose stores his baseball cards in a box like the one shown

Answers

The formula for volume (V) is l * w * h, where l is length, w is width, and h is height. So in a sense, we have already solved the first part of this problem!

V = 10 * 8 * 3

Now, all we have to do is complete this equation to find the volume.

10 * 8 = 80

80 * 3 = 240

The volume of Jose's box for baseball cards is 240 cubic inches.
Hope that helped! =)
V=lwh

8=l

10=w

3=h

8*10*3=V

V=80*3

V=240

Final Answer: V=240

What is 23/100 in simplest form as a fraction

Answers

It is already reduced as for it can not be simplified any longer.

A ball is thrown into the air from a height of 9cm above the ground, and its height is given by S=128+32t-16t^2, where t is the time in seconds1) find the values of t that makes S=0.
2) Do both of the values of t have meaning for this application? Explain why

Answers

-16t² + 32t + 128 = 0
-16t² + 64t - 32t + 128 = 0
-16t(t - 4) - 32(t - 4)
(-16t - 32)(t - 4) = 0
-16t -32 = 0      t - 4 = 0
-16t = 32          t = 4
t = -2

t = -2 and t = 4 are the values that makes S = 0.
Yes, because if you apply either of  these values alone, S will be 0.

Can someone please help me, so confused?

Answers

Answer:

answer is b

Step-by-step explanation:

w=450

w=300+9n

450-300=150

9n=150

n=162/3

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