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VladimirAG [237]
3 years ago
12

Suppose y varies directly as x, and y = 21 when x = 3. Find x when y = 42.

Mathematics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

x = 24

Step-by-step explanation:

y₂ - y₁

42 - 21 = 21

x + 21

3 + 21 = 24

So when y increases by 21, so does x.

x = 24

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