Asked by J

A car travels 815 km in 10 days. at this rate, how far would it travel in 20 days?
Answered by Ms. Sue
What is 2 times 815?

Or -- you could set up a proportion:

815/10 = x/20

Cross multiply:
10x = 815*20
x = ?

Answered by j
815*20/10
=1630
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