Ruby was doing a growth experiment for school and found that her hair was growing at a rate of three-twentieths centimeters per week. How many centimeters will her hair grow in one-third of a week?

nine-twentieths centimeters

nine-sixtieths centimeters

one-twentieth centimeters

twenty-ninths centimeters

Question

Ruby was doing a growth experiment for school and found that her hair was growing at a rate of three-twentieths centimeters per week. How many centimeters will her hair grow in one-third of a week?

 nine-twentieths centimeters

 nine-sixtieths  centimeters

 one-twentieth  centimeters

 twenty-ninths  centimeters

anonymous · Answer

the third one... if it is 3/20 in one week, in order to get one third of a week you divide that number by three and get 1/20 which is the third answer selection