Chapter 7.1, Problem 10CYU

To determine

Calculate the Miguel’s grade during social studies test.

Answer to Problem 10CYU

Miguel’s grade during his social studies test is $88.89\%$

Explanation of Solution

Given:

Total number of points= 90

Points earned by Miguel = 80

Calculations:

Finding percent of any fraction is a comparison of any number with 100.

Fraction is converted into percent by dividing numerator by denominator.

  $\begin{array}{l}\frac{80}{90}=\frac{x}{100}\\ 80\times 100=90\times x\\ 8000=90\times x\\ x=\frac{8000}{90}\\ x=88.89\%\end{array}$

Conclusion:

Therefore, we are able to calculate Miguel’s grade during his social studies test using fraction method.