Answer:
Step-by-step explanation:
I'm assuming that the two points lie on a line and that we want the slope/intercept equation for the line
slope is change in y over change in x
s = (-7 - (-2)) / (5 - 0) = -1
y intercept is found when x = 0 which happens to be one of our point pairs.
(0, -2)
y = -1x - 2
Answer:
<h2>x = -2 (verified by algebra) ✅</h2>
Step-by-step explanation:
Since we are given the value of y, we can replace it with 5x + 7.
We now have: 3x + 5x + 7 = -9
We can now simplify by adding 3x and 5x to get 8x.
8x + 7 = -9
We can subtract 7
8x = -16
And now, we divide by 8
x = -2
We can check to make sure we are correct
3(-2) + 5 (-2) + 7 = -9
-6 + -10 + 7 = -9
-9 = -9 ✅
Answer:
4 - 2x = 36
Ste4p-by-step explanation:
We have to add the ones with the same variables.
-17 + 21 = 4
-5x + 3x = -2x
4 - 2x = 36
7.5g of butter
So for 8 pancakes 5g of butter is needed.
So to make one pancake we have to divide 5 by.
5/8 = 0.625
And then you times 0.625 by 12 to find out how much butter is needed for 12 pancakes
So the answer is
7.5g of butter
