The answer is A. About 1 1/2. Hope it helps u!!! :)
Answer:
60
Step-by-step explanation:
Divide the number of questions answered correctly by his percentage
51 / 85 = 0.6
Now multiply that answer by 100 to see how many questions are on the quiz
0.6 x 100 = 60
Check your work by dividing that number by the number he answered correctly
51 / 60 = 0.85
Original equation x = yz / a solve for a
xa = yz
a = yz / x
Add 4 they were supposed to subtract 4. The subtraction sign is actually represented as a negative 2x. I think..
