3 years ago

Solve the equation 5x = 20 X=. Pls helps fast test due soon! lol

Mathematics

1 answer:

hodyreva [135]3 years ago

8 0

Answer:

x=4

Step-by-step explanation:

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4 years ago

If y varies directly as x and y = 21 when x = 5, find x when y = 42.

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<u>Step-by-step explanation:</u>

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k ⇒ $\frac{21}{5} = k$

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$\frac{42(5)}{21} = \frac{21(x)}{21}$

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