Can someone else explain it but more easier for an 8th grader

______________________________________
In January, gasoline cost \$1.05 per gallon. In July, gasoline cost \$1.20 per gallon. Find the percent of increase.

Would the answer for this question be 14.3?

And how do you do percent of decrease?
_______________________________________

The original cost of a computer is \$900. If the price is decreased by 15%, what is the sale price?

I need help with this question(:
Thank you

1. 1.20 - 1.05 = 0.15
0.15 / 1.05 = 0.143 = 14% decrease

__________________

900 * 0.15 = 135
900 - 135 = 765

posted by Ms. Sue
2. Kenya -- we have students posting upper level high school and college math. After this I suggest you use 8th grade math as your subject.

posted by Ms. Sue
3. oh ok

posted by Kenya

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