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Mathematics 8 Online
Alxxnt78:

Gas prices are projected to increase by 124% by April 2015. A gallon of gas currently costs $3.80. What is the projected cost of a gallon of gas for April 2015?

jhonyy9:

so using the rule of 3 simple you can write $3,80 mean 100% x mean the 124% and now cross multiplie to calcule the x value x = 124 *3,80 / 100 = ? calcule the x value and will get the right answer hope helped understandably easy

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