Question

During the summer between tenth grade and eleventh grade a student experienced a growth spurt and grew from 64 inches to 68 inches by what percentage did the students height increase

Answer 1

The growth in percentage between the tenth and elenth grade was 6.25 %.

Explanation:

By the end of tenth grade the height was 64 inches, that's a starting point, if we wish to know the growth in percentage we first should compute it in inches by subtracting the current height by the starting height. So we have:

growth = current height- starting height

growth = 68 - 64 = 4 inches

We now need to find how many percentages 4 inches represents in relation to the starting height. To do that we divide the growth by the starting height and multiply it by 100. We have:

growth(%) = (4/64)*100 = 6.25 %