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Annette [7]
3 years ago
5

Answer the following. a) Find h b) Find x

Mathematics
1 answer:
almond37 [142]3 years ago
8 0

Answer:

a) h = 15

b) x = 4

Step-by-step explanation:

a) set up a proportion:

  <u> 5 </u> = <u> h </u>

   8     24

cross-multiply:

8h = 120

h = 15

b) <u> x + 5</u> = <u> x + 5 + 15</u>

   5x + 1    5x + 1 + 35

cross-multiply:

(x + 5)(5x + 36) = (5x + 1)(x + 20)

5x^{2} + 61x + 180 = 5x^{2} + 101x + 20

180 = 40x + 20

160 = 40x

x = 4

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