Your math test has 25 questions and is worth 154 points. the test consist of multiple choice questions worth 2 points each and open ended questions worth 10 points each. how many of each type of question are there?

Answer

There is 13 questions that are worth 10 pints and 12 questions that are worth 12 points.

Step-by-step explanation:

the answer is c. 23/3

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