twenty bags of dog food were donated to the animal shelter. The total cost of the dog food including tax

Question

Twenty bag of dog food were donated to the animal shelter. The total cost of the dog food, including $5.95 tax, was $145.95. How much did one bag of dog food cost before taxes?

Answer 1

Set up an equation where x represents the number of  bags of food that were purchased. 

 

20x+5.95=145.95

 

you multiply x times twenty because there were 20 bags purchased and you also have to add in the tax. This should all equal the total cost, or $145.95. 

 

then solve for x!

 

20x=140

x=$7

 

so, one bag of food costs $7.