An airplane flies 390 miles in 3/4 hour. what is its average speed in miles per hour
1 answer:
You might be interested in
Let's call the number we're looking for . We know that
is twice as much as
.
Twice as much as a number simply means the double of that number, and in turn the double of a number means to muliply that number by 2.
So, in order to obtain , you have to multply
by 2. In formula, you have
or simply