Deanna and Lulu are playing games at the arcade. Deanna starts with $15, and the machine she is playing costs $0.75 per game. Lulu starts with $13, and her machine costs $0.50 per game. After how many games will the two friends have the same amount of money remaining? Let g represent the number of games.

Solve the equation.

A fish tank has 150 gallons of water and is being drained at a rate of 1/2 gallon each second. A second fish tank has 120 gallons of water and is being filled at a rate of 1/4 gallon each second. After how many seconds will the two fish tanks have the same amount of water?

Solve the equation.

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Shipping Company A charges $14 plus $2.25 a pound to ship overnight packages. Shipping Company B charges $20 plus $1.50 a pound to ship an overnight package. For what weight is the charge the same for the two companies?

Solve the equation from the previous question.

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A bicycle rental company charges a $20 fee plus $5.50 per hour to rent a bicycle. Another bicycle rental company charges a $15 fee plus $6.50 per hour to rent a bicycle. For what number of hours is the cost for the rental the same?

Solve the equation from the previous question.

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Sarah and John are saving money to buy a new video game console. Sarah has saved $40 so far and plans to save $10 each week. John, who hasn’t saved anything yet, plans to save $15 each week. After how many weeks will they have the same amount saved?

Solve the equation.

Sarah and John are saving money to buy a new video game console. Sarah has saved $40 so far and plans to save $10 each week. John, who hasn’t saved anything yet, plans to save $15 each week. After how many weeks will they have the same amount saved?

Solve equation.