ap chemistry is mixing 100 pints of liquid together for an experiment. liquid contains 10% acid liquid b contains 40% acid, and liquid C contains 60% acid. if there are twice as many pints of liquid a than liquid b, and the total mixture contains 45% acid find the number of pints needed

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb