The ratio of the number of boys to the number of girls in ms. zombo’s class is 3 to 4. the ratio of the number of boys to the number of girls in mr. stolarski’s class is 5 to 3. if there are 49 students in ms. zombo’s class and 48 students in mr. stolarski’s class, what is the ratio of the number of boys to girls in the combined classes?

Step-by-step explanation:

Number of boys = B

Number of girls = G

Ratio of the number of boys to the number of girls in Ms. Zombo’s class =

Ratio of the number of boys to the number of girls in Mr. Stolarski’s class =

Total number of boys in combined class = 21+30 = 51

Total number of girls in combined class = 28+18 = 46

∴ Ratio of the number of boys to girls in the combined classes is

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

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !