4 years ago

If y=1/4 when x=5, find y when x=7, given that y directly with x

Mathematics

1 answer:

mariarad [96]4 years ago

3 0

Answer:

7/20

Step-by-step explanation:

Since y varies directly with x, the ratio of y to x is proportional.

... y / 7 = (1/4)/(5)

... y / 7 = 1 / 20 . . . . simplify

... y = 7/20 . . . . . multiply by 7

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\\\\
x^{2}+4x+8 = 0
\\\\
\Delta = b^{2}-4ac
\\\\
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$\boxed{S = \{ \ \ \}}$

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3 years ago

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Paladinen [302]

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(4x - 4)(x - 4)

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