Sal's car had 20 gallons of gas in its tank and he purchases 27 gallons a week. Josie's car had 14 gallons of gas in its tank and she purchases 28 gallons a week. Using what they both had in their tanks, how many weeks will it take for them to have both purchased the same amount of gas?

26

step-by-step explanation:

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

geometry: triangles

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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