Question

Which of the following expressions could you use to estimate 47% of 89?

1/2 x 90
0.5 x 90
0.47 x 89
90/2

Answer 1

a,b,d choose everything

Explanation:

you can use everything except c because they all are 90/2 or really a because a is the 0.47 x 89

Answer 2

47% is close to 50%

Percent means over one hundred. So, 50% is 50/100 = 0.5

of in mathematics means multiplication

89 is approximately 90

Your answer will be


`\sf0.5 *90`