Answer:
Dory biked 143 miles last month
Explanation:
Assume that Karly biked x miles last month
We are given that Dory biked 11 times as many miles as Karly did
This means that:
Dory biked 11x miles last month
Now, we are given that:
Together they biked a total of 156 miles
Therefore:
156 = x + 11x
156 = 12x
x = 13
Based on the above:
Karly biked x miles = 13 miles
Dory biked 11x miles = 11*13 = 143 miles
Hope this helps :)
