So we already have it as y= a number correct?

So plug in Y for the first equation and we get

18x+3(-6x+7)=-8

And solve from there and we will get NO SOLUTION :D

4 0

4 years ago

(x-5)(x+6) / (x-3) less than or equal to 0

Maru [420]

Answer:

$\sqrt 27$

Step-by-step explanation:

(x-5)(x+6) / (x-3) less than or equal to 0

multiply both sides by x-3

(x-5)(x+6) less than or equal to (x-3)

Foil

x^2 + 6x -5x -30 less than or equal to x-3

simplify

x^2 + x -30 less than or equal to x-3

Add 30 to both sides and subtract x from oth sides

x^2 less than or equal 27

take a square root of both sides

x less than or equal to $\sqrt 27$

5 0

3 years ago

Each side of a sandbox is 7 feet long. It will cost $1.00 per square foot to replace the sand in the sandbox. What would be the

arlik [135]

Answer: $7.00

Step-by-step explanation:

each foot is $1, so times 7 is 7 dollars.

3 0

4 years ago

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