Erica is in training for a cross country race. She has been training by running 3 miles each day. She will be increasing her running by this weekly formula:y=3(1.1)^3 , where x represents the number of weeks and y represents the distance run. What distance, in miles, will Erica be running in 10 weeks? Round to the nearest mile.

7

8

9

10

Question

Erica is in training for a cross country race. She has been training by running 3 miles each day. She will be increasing her running by this weekly formula:y=3(1.1)^3 , where x represents the number of weeks and y represents the distance run. What distance, in miles, will Erica be running in 10 weeks? Round to the nearest mile.
 
		
7
 		
8
 		
9
 		
10

anonymous · Answer

where is the x in the formula?
just substitute x = 10 to get the distance y

anonymous · Answer

where would I distribute the x=10

anonymous · Answer

you typed the formula in the question wrong.

is it $$y = 3*1.1^x$$?

substitute x = 10 $$y = 3*1.1^{10}$$

anonymous · Answer

I got 3.33????

anonymous · Answer

wait never mind Is the answer 7

anonymous · Answer

it's 8
7.78 rounds to the nearest whole number is 8

anonymous · Answer

oh okay thats what I did wrong thanks