Y is inversely proportional to x. Given that y = 12 and x = 6. Find the value of y when x = 8.

9

Step-by-step explanation:

formula for inverse proportion is y =

k is the constant of probability

to find k,

y is 12, x is 6

12 =

so x = 12 × 6

∴ k is 72

so y =

∴ y is 9

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb