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Alja [10]
3 years ago
14

There are 15 more girls than boys in a summer camp. There are 135 campers in all. How many boys were there?

Mathematics
2 answers:
a_sh-v [17]3 years ago
6 0
65 boys 75 girls i just did guess and check
vladimir2022 [97]3 years ago
4 0
Close but there would only be 60 boys and 75 girls … 75 - 60 =15 and 75 +60= 125
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jeka94

C.√93


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3 years ago
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iogann1982 [59]

Answer:

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Step-by-step explanation:

Let's assume that the figure attached illustrate the situation.

For this case the we know that the original area given by:

A_i = 7 in *5 in = 35in^2

And we know that the initial area is a half of the entire area in red A_i = \frac{A_f}{2}, so then:

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And we know that the area for a rectangular pieces is the length multiplied by the width so we have this:

70 = (x+7) (x+5)

We multiply both terms using algebra and the distributive property and we got:

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x^2 +12 x -35 = 0

And we can solve this using the quadratic formula given by:

x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}

Where a = 1, b =12 and c=-35 if we replace we got:

x = \frac{-12 \pm \sqrt{(12)^2 -4(1)(-35)}}{2*1}

And the two possible solutions are then:

x_1 =-14.43 in, x_2 = 2.426in

Since the measurement can't be negative the correct answer for this case would be x =2.426 in

3 0
3 years ago
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Irina18 [472]

Answer:

Here is the answer:

42.857143%

Rounded would be:

42.9 or 42.3

Step-by-step explanation:

4 0
3 years ago
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