John's height increased from 5'2" to 5'7" during the past year. What is the rate of increase (to the nearest whole percent) of John's height over the past year?
2006-10-05 11:59:51 · 7 answers · asked by griffin t 1 in Education & Reference ➔ Homework Help
he grew 5 inches....
so, first convert his original height to inches:
62 inches
5 inches/62 inches = 0.0806 = 8.06% = 8.00% (rounded)
he has grown 8.0% to now be 67 inches
check:
8.0% * 62 inches = 5 inches
62 + 5 inches = 67 inches !! :)
2006-10-05 12:13:47 · answer #1 · answered by sasmallworld 6 · 0⤊ 0⤋
He grew 5 inches. Convert 5'2" into inches
12(5) +2 in
62 inches
to find out the percent, divide 5 by 62 on a calculator
approximately .0806
which is 8%
2006-10-05 19:10:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Convert John's height into inches.
How much taller is John now than at the beginning of the year? You can find that by simple subtraction.
What percentage is that amount, of his height (in inches) at the beginning of the year? Since this question is about percentages, I'm assuming you can take the last step.
good luck
2006-10-05 19:03:43 · answer #3 · answered by old lady 7 · 0⤊ 0⤋
well griffin t. trust me on this answer and figure out how to do it. first you subtract 5'2" from 5'7" which equals 5", then you put the 5" over the original height(5'2"=62"), so you have 5"/62", divide it out so you get .0806, multiply by 100 to get percent(8.06) then finally round it to the nearest percent(8%) and that is your answer
2006-10-05 19:12:07 · answer #4 · answered by luvkitties 4 · 0⤊ 0⤋
Well I would break it down to the simplest form.
5'7" = 67" = 100%
5'2" = 62" = Starting point
(100/67)*62 = 92.53
100-92.53 = 7.47 percent
7% would be my answer.
2006-10-05 19:12:43 · answer #5 · answered by creskin 4 · 0⤊ 0⤋
Rate of change in this case will be the amount of inches per year or day or hour or minute that he grew. Do the right division.
2006-10-05 19:06:22 · answer #6 · answered by gabyrig 3 · 0⤊ 0⤋
John grew five inches in 365 days...or 366 days if it was a leap year. Go from there.
2006-10-05 19:02:11 · answer #7 · answered by Anonymous · 0⤊ 0⤋