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fiasKO [112]
3 years ago
7

Instructions:Type the correct answer in each box.

Mathematics
1 answer:
CaHeK987 [17]3 years ago
4 0
C = children, a = adults
c + a = 700...c = 700 - a
7c + 10a = 6400

7(700 - a) + 10a = 6400
4900 - 7a + 10a = 6400
3a = 6400 - 4900
3a = 1500
a = 1500/3
a = 500

a + c = 700
500 + c = 700
c = 700 - 500
c = 200

there were 200 children and 500 adults
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We can set up a proportion comparing the sides of the original triangle to the new triangle.

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12     9                                                                                              12

<u>8  </u> =  <u>f </u> Then multiply both sides of the equation by 9 and get <u>40 </u> = f, <u>10</u>=f.

12     5                                                                                              12          3

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