13 Divided by What Equals 40?

Accepted Solution

13 Divided by What Equals 40? 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 13 by to equal 40? Solving 13 Divided by What Equals 40 Here’s how you would set up this question as an equation: 13 x = 40 \frac{13}{x} = 40 x 13 ​ = 40 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 13: 13 = 40 ∗ x 13 = 40*x 13 = 40 ∗ x Then we can isolate x on the right side of the equation by dividing both sides by 40: 13 40 = x \frac{13}{40} = x 40 13 ​ = 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 = 0.325 x = 0.325 x = 0.325 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 17 equals 38? 32 divided by what equals 82? What is 9/8 divided by 5? What is 20/16 divided by 15/5? What is 1 divided by 12/18?