Casandra is training for a 10 mile race. On the first day of running training she runs 4 miles, each day after that she adds on

Question

ss7ja [257]

3 years ago

9

Casandra is training for a 10 mile race. On the first day of running training she runs 4 miles, each day after that she adds on

0.5 mile. On what day will Casandra run 8 miles?

Mathematics

1 answer:

ArbitrLikvidat [17] · Answer 1 · 2022-07-31T08:02:07+03:00

ArbitrLikvidat [17]3 years ago

7 0

Let the number of days needed be x.

First day = 4 miles = 3.5 + 0.5
Second day = 3.5 + 0.5(2)
Third day = 3.5 + 0.5(3)

Equation: 3.5 + 0.5x

<u>Find the number of days needed to run 8 miles:</u>
3.5 + 0.5x = 8
0.5x = 4.5
x = 9

Answer: Casandra 8 miles on the <u>9th day</u>.