Q:

77 Divided by What Equals 78?

Accepted Solution

A:
77 Divided by What Equals 78?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 77 by to equal 78?Solving 77 Divided by What Equals 78Here’s how you would set up this question as an equation:77x=78\frac{77}{x} = 78x77​=78The 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 77:77=78∗x77 = 78*x77=78∗xThen we can isolate x on the right side of the equation by dividing both sides by 78:7778=x\frac{77}{78} = x7877​=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=0.987x = 0.987x=0.987Practice 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 19 equals 4?46 divided by what equals 85?What is 18/7 divided by 47?What is 2/15 divided by 20/6?What is 83 divided by 4/16?