Answer:
The correct answer is x10= 25
Step-by-step explanation:
First we must analyze the information we have:
We know that Luis spent 25 minutes blowing up 10 balloons.
What we want to find out is how many minutes it took to blow up one.
So, if for 25 minutes -------- it blew up 10 balloons
for x minutes -------------- blew up 1 ballon.
If we cross the terms the equation would be as follows:
x.10 = 25.1
And we just have to solve it:
x = 25/10
x = 2.5
The correct answer is that it took 2.5 minutes to blow up a balloon.