How do I solve this?

There are 171 seventh graders eating lunch. This number represents 45% of all of the seventh grades. How many 7th graders are there in the school?

Would I take 171 x 45% and add them together or take 171 X .55 or??

Do you know algebra?

let the number of students be x

.45x = 171
x = 171/.45
x = 380

or do it by the "3 step process"

45% represents 171
so 1% = 171/45 = 3.8
100% = 100*3.8 = 380

How do I solve this word problem

to do with fractions ro

What is one seventh of 6.3?

To solve this problem, you'll need to set up an equation using the given information.

Let's say the total number of seventh graders in the school is represented by "x".

You are told that 171 seventh graders eating lunch represents 45% (or 0.45) of all the seventh graders. Therefore, you can set up the equation:

0.45x = 171

To solve for x, divide both sides of the equation by 0.45:

x = 171 / 0.45

By performing this calculation, you can find the total number of seventh graders in the school. Specifically, divide 171 by 0.45 to get the answer.