45 Divided by What Equals 87?

Accepted Solution

45 Divided by What Equals 87? 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 45 by to equal 87? Solving 45 Divided by What Equals 87 Here’s how you would set up this question as an equation: 45 x = 87 \frac{45}{x} = 87 x 45 ​ = 87 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 45: 45 = 87 ∗ x 45 = 87*x 45 = 87 ∗ x Then we can isolate x on the right side of the equation by dividing both sides by 87: 45 87 = x \frac{45}{87} = x 87 45 ​ = 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 = 0.517 x = 0.517 x = 0.517 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 50 equals 52? 70 divided by what equals 51? What is 5/1 divided by 7? What is 18/17 divided by 8/7? What is 97 divided by 9/20?