Tori's grandmother is five times older than she is. the sum of tori's and her grandmother age is 72. how old is tori

I think this is the answer + working out

x= Tori's age

y= her grandmother's age

x+y=72

5x=y

5x-y=0

x+y=72

+(5x-y=0)

6x=72

72 divided by 6=

x=12

So Tori is 12...

We substitute 12 for x into the first equation...

12+y=72

Bring 12 to the other side

y=72-12

y=60

Her grandmother is 60 and Tori is 12.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

the answer is c

step-by-step explanation: i took a test with this question on it