Catherina conducted a survey of four school cafeterias to find the number of students who like burgers for lunch. the results of her survey are recorded in the table below: school cafeteria survey school total number of students in the cafeteria number of students who like burgers a 35 15 b 42 13 c 21 8 d 41 16 which school has the greatest percentage of students who like burgers for lunch? school a school b school c school d

School A= 100/35= 2.857*15= 43 percent.

School B=100/42=2.38*13= 31 percent

School C=100/21=4.76*8= 38 percent

School D=100/41=2.43*16= 39 percent

Which school has the greatest percentage of students who like burgers for lunch? School A

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

step-by-step explanation: