86 Divided by What Equals 40?

Accepted Solution

86 Divided by What Equals 40?MethodsSetting 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 86 by to equal 40?Solving 86 Divided by What Equals 40Here’s how you would set up this question as an equation:86x=40\frac{86}{x} = 40x86​=40The 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 86:86=40∗x86 = 40*x86=40∗xThen we can isolate x on the right side of the equation by dividing both sides by 40:8640=x\frac{86}{40} = x4086​=xWhen 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=2.150x = 2.150x=2.150Practice Other Division Problems Like This OneIf 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 40 equals 80?35 divided by what equals 39?What is 18/16 divided by 58?What is 8/20 divided by 14/1?What is 73 divided by 12/13?