Question

Last month,Dory biked 11 times as many miles as karly.Toghter they biked a total of 156 miles. How many miles did Dory bile last month.

Answer 1

Answer:

Dory biked 143 miles.

Step-by-step explanation:

We can solve the system of equations:

D= 11 K

D + K = 156

11 K + K= 156

12 K = 156

K = 156 : 12 = 13

D = 156 - 13 = 143,  or : 11 * 13 = 143 miles.

Answer 2

Answer:

143 miles

Step-by-step explanation:

Define x:

Let Karly biked x km

Karly = x

Dory biked 11 times as many miles as karly.

Dory = 11x

Solve x:

Together they biked a total of 156 miles.

x + 11x = 156

12x = 156

x = 156 ÷ 12 = 13

Find the miles Dorly biked:

Dorly = 11x = 11(13) = 143 miles

Answer: Dorly  biked 143 miles