Elohimsdaughter Elohimsdaughter

17-02-2015
Mathematics

Answered

A dog runs 9.5 mi in 0.5 h. The distance the dog travels varies directly with the amount of time it runs.

How many miles will it run in 1.75 h?

mi

Answer :

17-02-2015

We divide 9.5 / 0.5 to see how much it runs in 1 hour.

9.5 / 0.5 = 19

So it runs 19 miles in 1 hour.

Now we multiply 1.75 to 19 miles.

1.75 * 19 = 33.25

So he will run 33.25 miles in 1.75 hours.

Answer Link

17-02-2015

[tex]9.5\ miles\ in\ 0.5h\\ x\ miles\ in\ 1.75h\\\\ proportion:\\ 9.5-0.5\\ x-1.75\\\\ cross\ multiplication\\\\ 9.5*1.75=0.5x\\\\ 16,625=0.5x\ \ \ | divide\ by\ 0.5\\\\ x=33.25miles\\\\ It\ will \ run\ 33.25\ miles.[/tex]

Answer Link

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