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( 15 )( 7) - ( 1 7 )( 3) - ? = 100 div 5...

( 15 )( 7) - ( 1 7 )( 3) - ? = 100 `div` 5

A

32

B

30

C

36

D

64

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \( 15 \times 7 - 17 \times 3 - ? = \frac{100}{5} \), we will follow these steps: ### Step 1: Calculate \( \frac{100}{5} \) First, we need to simplify the right side of the equation. \[ \frac{100}{5} = 20 \] ### Step 2: Calculate \( 15 \times 7 \) Next, we calculate the first term on the left side of the equation. \[ 15 \times 7 = 105 \] ### Step 3: Calculate \( 17 \times 3 \) Now, we calculate the second term on the left side of the equation. \[ 17 \times 3 = 51 \] ### Step 4: Substitute the values into the equation Now, we substitute the calculated values back into the equation: \[ 105 - 51 - ? = 20 \] ### Step 5: Simplify the left side Now, we simplify the left side of the equation: \[ 105 - 51 = 54 \] So, we have: \[ 54 - ? = 20 \] ### Step 6: Solve for ? To find the value of \( ? \), we can rearrange the equation: \[ ? = 54 - 20 \] Calculating this gives: \[ ? = 34 \] ### Final Answer Thus, the value of \( ? \) is \( 34 \). ---
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