Hadley has
3
6
of a box of white envelopes and
1
3
of a box of gray envelopes. When full, each box of envelopes has the same number of envelopes.

Hadley said she has
4
9
of a box when she puts the white envelopes and gray envelopes together

step-by-step explanation:

4227473658779875563886538705958641728563470543621287463824132573847969p05749365273847906970680574936214

x-3y=4

step-by-step e

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

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