Question

Which expression gives the best estimate of 45 percent of 76?

1/4(80)
1/5(80)
1/2(80)
1/9(80)

Answer 1

Answer:

1/5(80)

Step-by-step explanation:

Well, 45% of 76 is 34.2

Which can be solved by converting 45% to .45 and then multiplied by 76

1/4(80) can be converted into .25*80 which is 20

1/5(80) can be converted into .20*80 which is 16

1/2(80) can be converted into .50*80 which is 40

1/9(80) can be converted into .11*80 which is 8.88

The closest one is 1/5(80) which solves the estimate,

Answer 2

The closest one is 1/5(80) which solves the estimate of 45 percent of 76.

What is estimation?

It is a rough calculation of the value, number, quantity, etc. It doesn't use real calculation but estimation by some method like prediction, using approximation etc.

This can be solved by converting 45% to 0.45

0.45 x 76

=  34.2

1/4(80) can be converted into 0.25 x 80 which is 20

1/5(80) can be converted into .20 x 80 which is 16

1/2(80) can be converted into .50 x 80 which is 40

1/9(80) can be converted into .11 x 80 which is 8.88

Hence, The closest one is 1/5(80) which solves the estimate of 45 percent of 76.

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