SOLUTION: Jamila paid $2.20 for 5 shark erasers and 1 keychain. Lucia paid $3.40 for 2 shark erasers and 6 keychains. How many cents did Hari pay for 1 shark eraser and 1 keychain?

Question 1152152: Jamila paid $2.20 for 5 shark erasers and 1 keychain. Lucia paid $3.40 for 2 shark erasers and 6 keychains. How many cents did Hari pay for 1 shark eraser and 1 keychain?
Answer by Shin123(626) (Show Source): You can put this solution on YOUR website!
Let the cost of a shark eraser be s and the cost of a keychain k. We have the system of equations, Dividing the second equation by two and multiplying by five gets Subtracting the first equation from the second gets Dividing by 14 gets k=0.45. Plugging this value in any of the equations gets you s=0.35. So a shark eraser costs 35 cents and a keychain costs 45 cents. Therefore, the solution is 35+45= cents. Click here for a solver and click here for a different equation solving solver that uses an alternative method.
RELATED QUESTIONS
Can I please get help on this question? Lin paid 42 cents for a pencil and two erasers.... (answered by MathTherapy)

Lin paid 42 cents for a pencil and two erasers. Kim paid 91 cents for five pencils and... (answered by josgarithmetic)

Hello, thanks for spending time to help. Here is the question: Jack bought some... (answered by rothauserc)

Erasers cost 45 cents apiece. Notebooks cost 90 cents apiece. Karla spent $18 for a... (answered by solver91311,derosejulia,ikleyn)

Andrew has pencils and erasers. The ratio of the number of his pencils to the number of... (answered by amarjeeth123,josgarithmetic)

You buy x keychains for $2 each and y snow globes for $3 each. You spend $22 for 9... (answered by mananth)

Hassan bought some keychains and some magnets. Each keychain cost $2.65 and each magnet... (answered by josgarithmetic)

Priscilla has $1.00 to get at least one (or more) pencils. Pencils cost 10 cents each,... (answered by stanbon)

In a bookshop, 40% of the stationery were pencils and the rest were erasers and rulers.... (answered by ikleyn,josgarithmetic,greenestamps)