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Naily [24]
3 years ago
7

7th Grade Math Please help -7 = 1/3 a Find the value of a

Mathematics
1 answer:
julsineya [31]3 years ago
4 0

Answer:

\huge\boxed{a=-21}

Step-by-step explanation:

-7=\dfrac{1}{3}a\to\dfrac{1}{3}a=-7\qquad|\text{multiply both sides by 3}\\\\3\!\!\!\!\diagup\cdot\dfrac{1}{3\!\!\!\!\diagup}a=(-7)(3)\\\\a=-21

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3 years ago
A jet ski company charges a flat fee of $22.00 plus $3.00 per hour to rent a jet ski. Another company charges a fee of $17.50 pl
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Given: A jet ski company charges a flat fee of $22.00 plus $3.00 per hour to rent a jet ski.

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Let x = Number of hours

y = Total cost

Then, Total cost (in $) for first company (y) = 22+3x

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