Number of questions he answered correctly = x
points for each correct answer = 10
total points = y
y = 10x
2(2x-1) + 2(3x)=4x-2+6x = 10x - 2 & not <span>=10x-1</span>
Answer:
x= 120
Step-by-step explanation:
x+60=180
x=180-60
x=120
Answer:
Step-by-step explanation:
28.57% profit.
You're welcome.
<3