The same answer 81/95 can be found using two different methods. Please view the attachments below.
Answer:
60
Step-by-step explanation:
Steps to solve "54 is 90 percent of what number?"
We have, 90% × x = 54
or,
90/100 × x = 54
Multiplying both sides by 100 and dividing both sides by 90,
we have x = 54 × 100/90
x = 60
If you are using a calculator, simply enter 54×100÷90, which will give you the answer.
Ok, first you have to just completely ignore the circles, they arent important.
Secondly, The ratio is, 5 stars to every 11 squares
Triangle Area = .5 * base * height
48 = .5 * (x +4) * x
48 = (.5x + 2) * x
48 = .5x^2 + 2x
.5x^2 + 2x -48 = 0
x = 8
base = 12
If we simplify like terms on left and right sides we gwt
16x + 9 = 4x
Its B
