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Dahasolnce [82]
3 years ago
10

What is 7% of 7,000?

Mathematics
2 answers:
Cloud [144]3 years ago
7 0
7 % of 7,000 is 490 .

Agata [3.3K]3 years ago
6 0
490

1. We assume, that the number 7000 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 7000 is 100%, so we can write it down as 7000=100%.
4. We know, that x is 7% of the output value, so we can write it down as x=7%.
5. Now we have two simple equations:
1) 7000=100%
2) x=7%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
7000/x=100%/7%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 7% of 7000

7000/x=100/7
(7000/x)*x=(100/7)*x - we multiply both sides of the equation by x
7000=14.2857142857*x - we divide both sides of the equation by (14.2857142857) to get x
7000/14.2857142857=x
490=x
x=490

now we have:
7% of 7000=490
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: Sam is 12 years older than John. For the last four years, Sam and John have been friends. Five years ago, Sam was 5 times as o
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Answer:

The present age of Sam is 20 years .

Step-by-step explanation:

Given as :

Let The age of John =  J years

Let The age of Sam = S years

∵ Sam is 12 years older than John

so,  The age of Sam = 12 + The age of John

i.e S = 12 + J            .....1

<u>Again</u>

Before 5 years ago

The age of Sam = 5 times age of John

So, (S - 5) = 5 × (J - 5)

Or, S - 5 = 5 J - 25

Or, 5 J - S = 25 - 5

Or, 5 J - S = 20                  .........2

Solving eq 1 and eq 2

[5 J - (12 + J)] = 20

Or, 5 J - 12 - J = 20

Or, 4 J = 20 + 12

Or, 4 J = 32

∴ J = \frac{32}{4}

i.e J = 8 years

So, The age of John = J = 8 years

Put The value of J into eq 1

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So, The present age of Sam = S = 20 years .

Hence, The present age of Sam is 20 years . Answer

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Manny has four pieces of carpet in the shape of a square like the one shown. He wants to use them together to carpet a portion o
KengaRu [80]

Answer:

the area of the space he can cover with carpet =  16x⁴ yards²

Step-by-step explanation:

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Then side we known the base, we can calculate for the area of the square.

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However, since Manny has four pieces of that carpet and wants to use them together to carpet a portion of his basement.

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the area of the space he can cover with carpet =  16x⁴ yards²

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