As part of kayla's exercise program, she either runs 6 miles/day or rides her bike 10 miles/day. her new goal is to cover a minimum distance of 200 miles, with at least 15 of the days running. she would like to determine the number of days it would take to accomplish this.

Kayla will be able to cover the distance of 200 miles by riding bike for 11 days and by running for 15 days.

Step-by-step explanation:

Numbers of days Kayla's has to run be x

Numbers of days Kayla's has to ride bike be y

Speed while running = 6 miles/day

Distance covered by running in x days = 6miles/day × x

Speed while riding a bike = 10 mile/day

Distance covered by riding bike in y days = 10 miles/day × y

Distance desired by Kayla to cover = 200 miles

At least 15 of the days running.Put  x = 15 days in above equation:

y= 11 days

Kayla will be able to cover the distance of 200 miles by riding bike for 11 days and by running for 15 days.

i dont get it. where are the "descriptions"?

7

step-by-step explanation:

the answer would be 7