18 Divided by What Equals 90?

Accepted Solution

18 Divided by What Equals 90? Methods Setting up the problem: In a problem like this, the “what” means that we’re working with a variable. The most common variable used in math is “x”. So we could say what number, x can we divide 18 by to equal 90? Solving 18 Divided by What Equals 90 Here’s how you would set up this question as an equation: 18 x = 90 \frac{18}{x} = 90 x 18 ​ = 90 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, it can be done in two steps. The first step is to multiply both sides by x to isolate 18: 18 = 90 ∗ x 18 = 90*x 18 = 90 ∗ x Then we can isolate x on the right side of the equation by dividing both sides by 90: 18 90 = x \frac{18}{90} = x 90 18 ​ = x When we simplify the new equation, we can solve for x. In this example, we will round to the nearest three decimal places if that’s needed. x = 0.200 x = 0.200 x = 0.200 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 1 equals 4? 25 divided by what equals 52? What is 13/2 divided by 88? What is 4/20 divided by 8/3? What is 62 divided by 6/19?