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Find the approximate value of (?) in the...

Find the approximate value of (?) in the following questions.
`? = (64.99 xx 36.03)/("59.97% of 194.967") + 17.89`

A

30

B

41

C

46

D

38

Text Solution

AI Generated Solution

The correct Answer is:
To find the approximate value of \( ? \) in the expression \[ ? = \frac{(64.99 \times 36.03)}{(59.97\% \text{ of } 194.967)} + 17.89 \] we will follow these steps: ### Step 1: Approximate the values First, we approximate the numbers involved: - \( 64.99 \approx 65 \) - \( 36.03 \approx 36 \) - \( 59.97\% \approx 60\% \) - \( 194.967 \approx 195 \) - \( 17.89 \approx 18 \) So the expression becomes: \[ ? \approx \frac{(65 \times 36)}{(60\% \text{ of } 195)} + 18 \] ### Step 2: Calculate \( 60\% \text{ of } 195 \) To find \( 60\% \text{ of } 195 \): \[ 60\% = \frac{60}{100} = 0.6 \] Thus, \[ 60\% \text{ of } 195 = 0.6 \times 195 = \frac{60 \times 195}{100} = \frac{11700}{100} = 117 \] ### Step 3: Calculate \( 65 \times 36 \) Next, we calculate \( 65 \times 36 \): \[ 65 \times 36 = 2340 \] ### Step 4: Substitute values into the expression Now we substitute the calculated values back into the expression: \[ ? \approx \frac{2340}{117} + 18 \] ### Step 5: Simplify \( \frac{2340}{117} \) Now we simplify \( \frac{2340}{117} \): To simplify, we can divide both the numerator and the denominator by 39: \[ \frac{2340 \div 39}{117 \div 39} = \frac{60}{3} = 20 \] ### Step 6: Add 18 to the result Finally, we add 18 to the result: \[ ? \approx 20 + 18 = 38 \] Thus, the approximate value of \( ? \) is \[ \boxed{38} \]
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