A sign in front of a roller coaster says you must be 40 inches tall to ride what percentage of this height is 34 inches

85% of 40

Step-by-step explanation:

We can do this in two ways, we can either use percent proportions or use benchmark percentages. I'll do both.

So the equation for percent proportions will look something like this:

34/x = 40/100

So to solve this, we do 34*100/40, which is 3400/40 which equals 85. That means that 34 is 85% of 40 inches.

Another way to do this is to use benchmark percents:

10% of 40 is 4 and, so you do 40-4 and get 36. Then we need to get 2 more down so we do 5% of 40 which is 2, so we do 36-2 or 40-6.

Then we add up the percents which would add up to 15%, we do 100-15 and get 85%

Or we could just say, well 6 is 15% of 40 so we do 100-15 and 40-6 and get that 34 = 85% of 40

Let me know if you have any questions

Let me know if you have any questions