Please help!!! Will mark brainliest Explain how you could estimate 22% of 78 to check if your answer is reasonable.
Mathematics · Middle School · Tue Nov 03 2020
Answered on
Given the statement:
Estimate 22% of 78
Solution:
In order to estimate the percentage of the number, we must first convert the percentage to decimal. In converting a percentage into decimal, divide the percentage by 100, hence in converting a decimal to percentage, multiply the percentage by 100.
=22/100
= 0.22
Multiply 0.22 by 78 to determine its exact value.
= (0.22)(78)
= 17.16
To check if the answer is reasonable, we divide 17.6 by 78.
=17.16/78
= 0.22
= (0.22)(100)
= 22%
Final answer:
22% of 78 is 17.16