Andy’s Rental Car charges an initial fee of $20 plus an additional $30 per day to rent a car. Buddy’s Rental Car charges an initial fee of $36 plus an additional $28 per day. How many days is the total cost charged by the companies?
20 + 30x = 36 + 28x
A water tank holds 256 gallons but is leaking at a rate of 3 gallons per week. A second water tank holds 384 gallons but is leaking at a rate of 5 gallons per week. After how many weeks will the amount of water in the two tanks be the same?
256 - 3g = 384 - 5g
Mike weighs 200 pounds and plans to lose 1.5 pounds a week. Jeff weighs 180 pounds and plans to lose 0.5 pound a week. When will Mike weigh less than Jeff?
200 - 1.5p = 180 - 0.5p
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