3 years ago

Twice the sum of x and y decreased by 21

1 answer:

8 0

Answer: 2((x+y)-21)

Calculation/Explanation:

Twice the sum of x and y decreased by 21 means that you must add x and y first before decreasing by 21. The last step is to double the whole equation that we just performed.

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If 2500 amounted to 3500 in 4 years as simple interest .find the rates at wish the interest was charged

Bad White [126]

Answer:

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Hello,
$\left \{ {{y= \dfrac{1}{x+2} } \atop {y=x^2+2}} \right. \\\\

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$
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Download xls

3 0

3 years ago

Read 2 more answers

What I Can Do

Nostrana [21]

The answer is 3 I’m sure because y=3

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3 years ago

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