To calculate 8% of \( 5 \times 10 \) and then take that result 7 times, follow these steps:
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Calculate \( 5 \times 10 \): \[ 5 \times 10 = 50 \]
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Find 8% of 50: \[ 8% \text{ of } 50 = \frac{8}{100} \times 50 = 0.08 \times 50 = 4 \]
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Now, since you want to find that result (4) 7 times, simply multiply by 7: \[ 4 \times 7 = 28 \]
So, 8% of \( 5 \times 10 \) taken 7 times equals \( 28 \).