Your Company owns a fleet of automobiles that employees use to travel. The probability that a car needs an oil change is 0.30. The probability that both the oil and the filter need changing is 0.20. Required:
What is the probability that a new oil filter is needed given that the automobiles' oil is being changed?

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5