Question

2 What is the product of - and -0.8? Select all that apply. A 8 25 B В 0.32 © 0.2 8 25 E -0.32 6 -0.2

Answer 1

You have the following product:

(-2/5) x (-0.8)

In order to solve the previous multiplication, write the decimal number as a fraction.

Consider that the fraction associated to 0.8 is a fraction with the numerator equal to 8 and the denominator is 1 next by the same number of zeros you have in the decimal number. You have one zero, then the fraction is:

0.8 = 8/10

replace the previous fraction in the given product:

(-2/5)x(-8/10)

multiply numerator with numerator and denominator with denominator,

moreover, use the signs multiplication rule:

(-2/5)x(-8/10) = 16/50 simplify the fraction

16/50 = 8/25 = 0.32

Hence, the solution to the given product is 8/25 and 0.32