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3 years ago

What number is 70% of 45?

Mathematics

2 answers:

ryzh [129]3 years ago

8 0

Answer:

31.5

Step-by-step explanation:

100%-45

70%-x

<em>Cross multiply</em>

100x=3150

÷100 ÷100

______________-

x=31.5

Hope this helps P.s I recommend using this method its very helpful for these kind of problems!

Tema [17]3 years ago

7 0

Answer:31.5

Step-by-step explanation:trust me bro

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You have an office building that is 600 square feet in area. What are two possible dimensions how your office could be construct

stepan [7]

Answer:

$20\ ft$ by $30\ ft$

$15\ ft$ by $40\ ft$

Step-by-step explanation:

In this problem I'm assuming the office is rectangular.

The area of rectangle is equal to

$A=LW$

where

L is the length of the rectangle

W is the width of the rectangle

In this problem we have

$A=600\ ft^{2}$

$600=LW$ ------> equation A

Find two possible dimensions of the office

case A) Assume a length side L and find the value of W in the equation A

For $L=30\ ft$

substitute in the equation and solve for W

$600=(30)W$

$W=600/30=20\ ft$

The dimensions are $20\ ft$ by $30\ ft$

case B) Assume a length side L and find the value of W in the equation A

For $L=40\ ft$

substitute in the equation and solve for W

$600=(40)W$

$W=600/40=15\ ft$

The dimensions are $15\ ft$ by $40\ ft$

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3 years ago

Which of the following expressions are equivalent to -x/y

ira [324]

Answer:

-z/e

Step-by-step explanation:

-x/y = -z/e

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3 years ago

How many 1/4 are in 5?

mina [271]

Do 4x5, that is all you need to do, did you learn fractions in elementary?

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a spherical ball with a volume of 7776pi cm cubed is packaged in a box that is in the shape of a cube. the edge length of the bo

Elenna [48]

Answer:

that is the solution to the question

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3 years ago

Answer to the question

viktelen [127]

Answer:

x = 48.

Step-by-step explanation:

If AE is 921, then EC is equivalent to that. First, you subtract 9 from 921, then divide by nineteen to get your answer: x = 48.

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