SOLUTION: Mary went shopping and bought 3 times as many tins of beans as jars of jam. A tin of beans cost �0.69 and a jar of jam costs �1.50. The total bill was �7.14. 1.Write a linear eq

Question 1106404: Mary went shopping and bought 3 times as many tins of beans as jars of jam. A tin of beans cost �0.69 and a jar of jam costs �1.50. The total bill was �7.14.
1.Write a linear equation to represent this information
2.Solve the linear equation
3.How many jam jars did Mary buy?
4. How many times of beans did Mary buy?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Mary went shopping and bought 3 times as many tins of beans as jars of jam.
A tin of beans cost �0.69 and a jar of jam costs �1.50.
The total bill was �7.14.
:
let x = the number of jars of jam
then
3x = number of tins of beans
;
1.Write a linear equation to represent this information
.69(3x) + 1.50x = 7.14
2.Solve the linear equation
2.07 + 1.50x = 7.14
3.57x = 7.14
x = 7.14/3.57
x = 2
3.How many jam jars did Mary buy?
2 jars of jam
4. How many times of beans did Mary buy?
3(2) = 6 jars of beans
:
:
Check
2(1.50) = 3.00
6(.69) = 4.14
---------------
total cost 7.14
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