3 years ago

10% of what number is 43?

1 answer:

7 0

Method 1

10%   - 43 |multiply both sides by 10

100% -   430

Answer: 43 is 10% of 430.

Method 2

10% - 43
100%    - x
/cross multiply/

10x = 100·43
10x = 4300 |divide both sides by 10
x = 430

Answer: 43 is 10% of 430.

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Which expressions can never result in a negative real number when evaluated for any value of x? Select all that apply.

kolezko [41]

It is 5 beacause the x^1/3

7 0

3 years ago

The original cost of Sam’s investment is $10,000. After liquidating the investment, Sam calculated his real return to be $10,700

OverLord2011 [107]

Answer:

Return on investment (ROI) = 7%

Step-by-step explanation:

Given:

Amount invested = $10,000

Total amount get (refund) = $10,700

Find:

Return on investment (ROI) = ?

Computation:

Amount Return = Total amount get (refund) - Amount invested

Amount Return = $10,700 - $10,000

Amount Return = $700

$Return\ on\ investment \ (ROI) = [\frac{Amount\ Return}{Amount\ invested} ]100\\\\Return\ on\ investment \ (ROI) = [\frac{700}{10,000} ]100 \\\\ Return\ on\ investment \ (ROI) =7$