Q:

What Divided by 21 Equals 72?

Accepted Solution

A:
What Divided by 21 Equals 72? Methods Setting up the problem: In a problem like this, the β€œwhat” means that we’re working with a variable. The most common variable used in math is β€œx”. So, we could say what number, x, when divided by 21, equals 72? Solving What Divided by 21 Equals 72 Here’s how you would set up this question as an equation: x 21 = 72 \frac{x}{21} = 72 21 x ​ = 72 The goal of the problem is to solve for x. To do this we need to change the equation so that x is alone on one side of the equation.In this case, we can do that by multiplying both sides of the equation by 21, resulting in this equation: x = 72 βˆ— 21 x = 72*21 x = 72 βˆ— 21 Then we simplify and find our answer: x = 1512 x = 1512 x = 1512 So, the answer to the question β€œWhat divided by 21 equals 72?” is 1512.To prove this, we can take the original problem: x 21 = 72 \frac{x}{21} = 72 21 x ​ = 72 And insert 1512 in the place of x: 1512 21 = 72 \frac{1512}{21} = 72 21 1512 ​ = 72 Because this is true, the answer must be correct. Practice Other Division Problems Like This One If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too! What divided by 92 equals 49? 34 divided by what equals 79? What is 20/16 divided by 86? What is 8/19 divided by 15/5? What is 23 divided by 10/14?