Q:

What Divided by 5 Equals 81?

Accepted Solution

A:
What Divided by 5 Equals 81? 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 5, equals 81? Solving What Divided by 5 Equals 81 Here’s how you would set up this question as an equation: x 5 = 81 \frac{x}{5} = 81 5 x ​ = 81 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 5, resulting in this equation: x = 81 βˆ— 5 x = 81*5 x = 81 βˆ— 5 Then we simplify and find our answer: x = 405 x = 405 x = 405 So, the answer to the question β€œWhat divided by 5 equals 81?” is 405.To prove this, we can take the original problem: x 5 = 81 \frac{x}{5} = 81 5 x ​ = 81 And insert 405 in the place of x: 405 5 = 81 \frac{405}{5} = 81 5 405 ​ = 81 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 55 equals 99? 6 divided by what equals 34? What is 18/1 divided by 61? What is 16/20 divided by 14/12? What is 36 divided by 17/6?