Answer:
D
Step-by-step explanation:
-10x - 15y = -30
-10x + 30 = 15y
(30 - 10x) / 15 = y
(30/15) - (10x/15) = y
2 - 2x/3 = y
Answer: y = -2x/3 + 2 or y = 2- 2x/3
Answer:
y =5
Step-by-step explanation:
Let's solve your equation step-by-step.
4(2y−3)+12=40
Step 1: Simplify both sides of the equation.
4(2y−3)+12=40
(4)(2y)+(4)(−3)+12=40(Distribute)
8y+−12+12=40
(8y)+(−12+12)=40(Combine Like Terms)
8y=40
8y=40
Step 2: Divide both sides by 8.
8y
8
=
40
8
y=5
Answer:
y=5
Since Ellen drove a total of 80 miles, and for 2 hours.
Her speed is = 80/2 = 40 miles/hour
So Ellen drove for 40 miles/hour.
Since Carin drove 5 miles per hour faster than Ellen, the he drove = (40 + 5) = 45 miles/hour.
So Ellen drove 40 miles/hour and Carin drove 45 miles/hour
