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krek1111 [17]
3 years ago
9

On a map 3 inches = 20 miles if the distance between two cities on the map is 15 inches how many miles apart are they

Mathematics
2 answers:
Pie3 years ago
6 0

Answer:

100 miles is the answer

Step-by-step explanation:

3 inches = 20 miles

15/3 = 5

5 x 20

= 100 miles

diamong [38]3 years ago
5 0
<h3>Answer:  100 miles</h3>

========================================================

Work Shown:

(3 inches)/(20 miles) = (15 inches)/(x miles)

3/20 = 15/x

3*x = 20*15

3x = 300

x = 300/3

x = 100

Therefore, 15 inches on the map correspond to 100 miles in real life.

-------------------

We could approach the problem like this:

3 inches = 20 miles

5*(3 inches) = 5*(20 miles)

15 inches = 100 miles

In the second step, I multiplied both sides by 5 to turn the "3 inches" into "15 inches".

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