Use properties of rational numbers to multipy the following -3.5 x (-20.7)

Question

A. -7.245
B. -72.45
C. 72.45
D. 7.245

Answer 1

To multiply the numbers -3.5 and -20.7, we can first look at the absolute values of the numbers and then determine the sign of the product.

1. The absolute values are:

   • | -3.5 | = 3.5
   • | -20.7 | = 20.7

2. Now, we multiply the absolute values: \[ 3.5 \times 20.7 = 72.45 \]

3. Since we are multiplying two negative numbers (-3.5 and -20.7), the product will be positive.

Thus, the product is: \[ -3.5 \times (-20.7) = 72.45 \]

The correct answer is: C. 72.45