3 years ago

3(y+5)+9=30

1 answer:

5 0

Answer:

Direct variation problems are solved using the equation y = kx. ... Step 3: Rewrite the equation from step 1 substituting in the value of k found in step 2. ... Example 3 – If c varies directly as the square root of d, and c = 6 when d = 256, find c ...

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4 years ago

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In the 1990s, the number of target stores increased from 420 stores to 914 stores. What was the percent increased in the number

tino4ka555 [31]

Divide 914/420, move the decimal over to the right two places and you'll get approximately 217.5%

EDIT: My mistake, read question wrong.
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<u></u>117.62%
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4 years ago

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4 years ago

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What is the value of y when 16 = 4(y+3) - 8y?

Dmitry_Shevchenko [17]

Answer:

$\boxed{y = -1}$

Step-by-step explanation:

$= > 16 = 4(y + 3) - 8y \\ \\ = > 16 =( 4 \times y) + (4 \times 3) - 8y \\ \\ = > 16 = 4y + 12 - 8y \\ \\ = > 16 = 12 - 4y \\ \\ = > 4y = 12 - 16 \\ \\ = > 4y = - 4 \\ \\ = > y = - \frac{4}{4} \\ \\ = > y = - 1$

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3 years ago