At your local farmers market, it cost $10 to rent a stand, and $7 for every hour you stay there. if you paid a total of $38, how many hours did you stay at the farmers market

4 hours

Step-by-step explanation:

You paid a total of $38, in which $10 was a one-time payment.

Subtract 10 from 38: 38 - 10 = 28

You have to pay $7 for every hour. Divide 7 from 28:

28/7 = 4

You stayed at the farmers market for 4 hours.

~

26

step-by-step explanation:

hello from mrbilldoesmath!

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

discussion:

in general, the factorization of a^3 + b^3 is

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

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

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

you,

mrb

(a + b) (a^2 - a b + b^2)