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Answer:
x=32
Step-by-step explanation:
5x+20=180 can be used to solve this problem because those two angles are supplementary
3 carnations, you find the lowest common multiple.
Answer: 1 hour 20 minutes
Step-by-step explanation:
Given : The old machine could shred a truckload of paper in 4 hours.
Rate of work done by old machine = 
The new machine could shred the same truckload in 2 hours.
Rate of work done by new machine = 
Let 't' be the time taken by both of them working together , then we have the following equation:-

Since 1 hour = 60 minutes
Then, 
Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.
Answer:
the answer is D
how to try the values of the x and y
(x,y)