Lucy drove 225 miles using 10 gallons of gas. At this rate, how many gallons of gas would she need to drive 279 miles?
have you try using a ratio??
225miles : 10 gallons
279miles : x gallons
I have tried and am not sure if the answer is 12.4 gallons or 15.4 gallons. Would the ratio look like this
225/10 =279/x
1665.0 or 1675.0 gallon Is this correct
To find out how many gallons of gas Lucy would need to drive 279 miles, we can set up a proportion based on her previous trip.
Let's use the proportion:
Miles driven / Gallons of gas used = Miles to be driven / Gallons of gas needed
We know that Lucy drove 225 miles using 10 gallons of gas. Plugging these values into the proportion, we get:
225 / 10 = 279 / x
To find the value of x (gallons of gas needed to drive 279 miles), we can cross-multiply and solve for x:
225x = 10 * 279
225x = 2790
Finally, we divide both sides of the equation by 225 to isolate x:
x = 2790 / 225
Calculating this, we find that Lucy would need approximately 12.4 gallons of gas to drive 279 miles.