12x^2 + 20x that is the answer
Answer:
y = 3x - 5
Step-by-step explanation:
I used my calculator so that it would be faster.
But if you want work you have to find the slope then plug in.
To find the slope use points (1, -2) and (2, 1) use this formula
Plug the points in
So your slope is 3
NOw Plug In (1, -2)
-2 = 3(1) + b (b represents the y- intercept)
-2 = 3 + b (subtract 3 on both sides)
-5 = b
The final equation is y = 3x - 5
Hope this helps ya!!
We know that
J<span>amie can paint an average of
4.78 yards----------------------> in 1 hour
then
119.5 yards------------------> X hours?
X=119.5/4.78--------> X=25 hours
the answer is
25 hours</span>
Answer:
$355.47 cents.
Step-by-step explanation
since you want to find the square footage of the entire room, hence Home Depot costs $3.40 per square foot, you would clearly need to find the area. Basically find what 8.5 * 12.3 is and then multiply that number by 3.40. Once that is done, put a dollar sign on the answer and BOOM, you got it. :)
so $355.47 cents.
Answer:
k=-3
x=63
Step-by-step explanation:
The equation for direct variation is
y = kx where k is the constant of variation
We know x and y we can solve for k
-87 = k*29
Divide each side by 29
-87/29 = k
-3 =k
y= -3x
Now we know y = -189, we can find x
-189 = -3x
Divide by -3
-189/-3 = -3x/-3
63 =x