a student answered 86 problems on a test correctly and received 98% how many problems were there on the test if they all had the same amount of points.
I crossed multiplied but forgot whats next. Please don't give me the answer I just need to know what's next to do.
86 / .98 = x / 1.00
86 * 1.00 = x * .98
solve for x
Can you explain more, sorry im just not understanding
After cross multiplying, the next step is to isolate the variable (the unknown quantity) by dividing both sides of the equation by the coefficient of the variable. In this case, divide both sides by 98.
To find the total number of problems on the test, you can set up a proportion using the information given.
Let's first define the variables:
x = total number of problems on the test
Now, let's set up the proportion using the student's score:
86 (correctly answered problems) / x (total number of problems) = 98% (or 0.98 as a decimal)
To solve for x, you can cross-multiply:
86 * 1 = x * 0.98
After cross-multiplying, the next step is to isolate x (the total number of problems on the test) by dividing both sides of the equation by 0.98.
Therefore, the next step is to divide both sides of the equation by 0.98. This will give you the value of x, which represents the total number of problems on the test.