Question

An airplane flies 3/4 of a mile in 1/8 of a minute what is the airplane speed in miles per minute

Answer 1

to figure this out just multiply 3/4 by 8 because you need to seethe plane flies 3/4 miles 8 times. 

Answer 2

Answer:

Step-by-step explanation:

Use proportions to figure this out.  On the top you'll have miles and on the bottom you'll have minutes.  I am going to change 3/4 to .75 and 1/8 to .125:

$\frac{miles}{minute}:\frac{.75}{.125}$

We want to know how many miles per 1 minute that is.  So we have the unknown on top in a new ratio, with 1 on the bottom:

$\frac{miles}{minute}:\frac{.75}{.125}=\frac{x}{1}$

This second ratio is allowing us to calculate what the decimal ratio is in miles per 1 minute.  Cross multiply to get

.125x = .75 so

x = 6 miles

That tells us that the decimal ratio is equivalent to 6 miles per minute