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3 years ago

What is reasonable estimate for 37% of 40?

Mathematics

2 answers:

Llana [10]3 years ago

8 0

We set up a proportion: 37/100= ?/40

Cross multiply: 100*?= 37*40
⇒ ?= 37*40/100= 14.8

37% of 40 is 14.8~

Evgen [1.6K]3 years ago

4 0

Out of 40
50%=20
25%=10
5%=2
35%=14
So more or less 15.5

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Rus_ich [418]

7.95 ÷ 1.06 = $7.50

This works as by dividing 7.95 by the percentage multiplier 1.06 it will give you the original amount.

An alternative method is to find out what 100% (7.95) is, then divide by 10 to find 10% and then divide by 10 again to find 1% and then multiply the 1% by 6 and subtracting the answer from 7.95.

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3 years ago

Bianca walks her dog everyday. She walks 0.6 mile on each weekday. On each weekend day, the walk is 1 1/2 times as long as a wal

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3 years ago

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Yakvenalex [24]

Answer:

(4/5)

Step-by-step explanation:

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3 years ago

When 3(2x + 5) is added to 2(2x − 4) the resulting expression is?

velikii [3]

Answer:

10x + 7

Step-by-step explanation:

3(2x + 5) added to 2(2x - 4) is the same as 3(2x +5) + 2(2x - 4)

Remember PEMDAS

P – Parentheses (distribution)

E – Exponents

M – Multiplication

/D – Division (whichever comes first from left to right)

A – Addition

/S – Subtraction (whichever comes first from left to right)

First, we will distribute the left side.

3(2x + 5)

3 * 2x = 6x

3 * 5 = 15

Add them together to get:

6x + 15

6x + 15 + 2(2x - 4)

We must now distribute the right side.

2 * 2x = 4x

2 * -4 = -8

Add them together to get:

4x -8

We now have:

6x + 15 + 4x - 8

<u>Let's combine like terms.</u>

6x and 4x are like terms.

Combine: 6x + 4x = 10x

15 and -8 are like terms.

15 - 8 = 7

Now we have 10x + 7

Since 10 and 7 don't have any GCF, we have our answer.

10x + 7

~ $InLoveWithPugs$

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3 years ago