algebra
posted by aaron .
trying to solve a point a slope word problem.
you are scheduled to start your job at an oil change shop 2 hours after shop opens. two hours after you start, a total of 11 cars have had their oil changed. three hours later, a total of 14 cars have had their oil changed. At what rate are cars getting their oil changed since you started working? How many cars had theri oil changed before you started work?
would I set up as 1411/32=changes?

It is not clear to me what you mean by
"Three hours later"
Is it three hours after he started working or is it five hours after you start
According to the work you show, you assumed it is 3 hours after you start.
Once you have established that, yes, take the slope
then find the equation, just like you would for 2 points on a straight line. Finally find the "yintercept", when t = 0
Respond to this Question
Similar Questions

algebra
Pump A can fill a swimming pool in 6 hours and pump B can fill the same pool in 4 hours. The two pumps began working together to fill an empty pool, but after 40 minutes pump B broke down, and pump A had to complete the job alone. … 
MathAdvanced PreAlgebra
A computer repair shop charges a flate rate of 50$ plus $35 per hour spent repairing each computer. LEt h be the number of hours spent repairing a computer. Use function notation to write an equation that gives the total charges for … 
Algebra
Two cars start at the same point at Alexandria, verginia, and travel Ans 50mph, 55mph 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed … 
Algebra
Two cars start at the same point at Alexandria, verginia, and travel 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car. 
algebra
You began a new job at a pizza shop 3 weeks ago. You worked 6 hours during the first week, 4 hours during the second week, and 10 hours during the third week. Which graph best represents the total hours you worked over these 3 weeeks? 
Algebra
on Monday morning, a mechanic has no cars in her shop. the table at right shows the number of cars dropped off and picked up each day. Find the total number of cars left in her shop on Friday. 
Language Arts
1. Which of the following sentence uses the past tense verb? 
time speed and distance
P, Q and R start from the same place X at (a) kmph, (a+b) kmph and (a+2b) kmph respectively. If Q starts p hours after P, how many hours after Q should R start, so that both Q and R overtake P at the same time? 
Algebra word problem
It takes john 12 hours to plow a field. After he had been working for 3 hours, his brother Mike came to help. Together they finished the job in 5 hours. How long would it take mike to plow the field working alone? 
Math
I have done this problem converting numerical expression to word problem . Like (12x2)+(4x3) At arcade Jeff got 12 plushy for 2 coins each and 4 hand clapper for 3 coins each. Question asked how many coins he paid to buy all these …