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pav-90 [236]
3 years ago
11

The distance a spring stretches varies directly as the amount of weight that is hanging on it. A weight of 2.5 pounds stretches

a spring 18 inches. Find the stretch of the spring when a weight of 6.4 pounds is hanging on it.
Mathematics
1 answer:
marishachu [46]3 years ago
6 0
2.5 / 18 = 6.4 / x
cross multiply
(2.5)(x) = (18)(6.4)
2.5x = 115.2
x = 115.2 / 2.5
x = 46.08 inches
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dolphi86 [110]

Answer:

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Step-by-step explanation:

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A) √0.07 can be rewritten as;

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√(7 × 1/10000)

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√0.7 = √(70 × (1/100))

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Like above;

Rewrite to get;

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Thus;

√(70 × 1/10000) = (1/100)√70 = (1/100) × 8.37 = 0.0837

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