Ruby was doing a growth experiment for school and found that her hair was growing at a rate of 3/20 centimeters per week. How many centimeters will her hair grow in 1/3 of a week?

Question

Ruby was doing a growth experiment for school and found that her hair was growing at a rate of  3/20 centimeters per week. How many centimeters will her hair grow in 1/3 of a week?

jpsmarinho · Answer

What  you did so far?

anonymous · Answer

i divided

anonymous · Answer

well you switch it if its an division problem you multiply

anonymous · Answer

i came up with 1/20

jpsmarinho · Answer

You know that the hair grows 0.15 centimeters per week , right? So, if pass one week and the hair has 1 one centimeters in the initial of the week, in the final, he has 1,15 centimeters.

 So, multiply 0,15 * 0,33 = 0,0495 centimeters

jpsmarinho · Answer

Right, you are correct . I used rounded values

anonymous · Answer

lol thank you.alot of times i have trouble settin up word problems

jpsmarinho · Answer

Sorry my English. I'm Brazilian ^^

jpsmarinho · Answer

you're welcome!