Mudrik installed a device on his car that guaranteed to increase his gas mileage by 10%. he currently gets 30 miles per gallon. How much will the gas mileage increase after installing the device?
The gas mileage will increase by 3. Proportion: 1. n/30=10/100 2. n×100=30×10(Cross multiply) 3. n100=300 4. n100/100= 300/100(Rivide both sides by 100. 5. n=3 ***3+30=33*** Hope it helps!!
