Answer:
150 percent
Step-by-step explanation:
30/20. Multiply both sides by 5. 150/100. 30 is %150 of 20
Answer:
B. The symbol is greater than
Step-by-step explanation:
About 85% sure it's right
Answer:
Total laps = 10d
Step-by-step explanation:
Let c = Carl's laps
d = Daria's laps
e = Erin's laps
c = 3d
c = e/2
c + d + e = totals laps
We can insert 3d in place of c in the third equation
3d + d + e = total laps
Also, e/2 equals 3d
e/2 = 3d
Multiply both sides by 2
(e/2 = 3d)2
e = 6d
Insert the new e
3d + d + 6d = 10d = totals laps
A is the coefficient of x in this case.
So A. is the right answer as you need to divide by the coefficient.