Question

Use properties of rational numbers to multiply the following.


81 × (-28.54)

(2 points)
a x b

Answer 1

To multiply rational numbers, we simply multiply the numerators together and the denominators together.

In this case, 81 is a rational number because it can be written as 81/1, and -28.54 is also a rational number because it can be written as -2854/100.

Therefore, we can multiply 81/1 and -2854/100 as follows:

81/1 * -2854/100 = (81 * -2854)/(1 * 100) = -231,774/100

So, the product of 81 and -28.54 is -231,774/100.