9 Divided by What Equals 91?

Accepted Solution

9 Divided by What Equals 91?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 9 by to equal 91?Solving 9 Divided by What Equals 91Here’s how you would set up this question as an equation:9x=91\frac{9}{x} = 91x9​=91The 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 9:9=91∗x9 = 91*x9=91∗xThen we can isolate x on the right side of the equation by dividing both sides by 91:991=x\frac{9}{91} = x919​=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=0.099x = 0.099x=0.099Practice 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 41 equals 68?67 divided by what equals 63?What is 15/2 divided by 89?What is 14/1 divided by 13/5?What is 94 divided by 20/11?