If the price of gas was on average $2.35 per gallon, and this was $1.26 cheaper than a year before, what is the percent of decrease in price? (round to the nearest percent.)

35% decrease

step-by-step explanation:

1) when solving for percent decrease, remember that [(original price - new price)/original price] * 100% = percent decrease:

since you are already given the difference between the original price and new price (1.26), you can simply divide it by the original price.

* 100%

2) use a calculator to solve:

= 0.34940304709 * 100%

= 34.94034709%

3) round to the nearest percent:

= 35%

im here

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584