The point-slope form:

- given point
- given slope
The standard form:

<em>use distributive property</em>
<em>add
to both sides</em>
<em>subtract
from both sides</em>
<em>change the signs</em>

15)
an exterior angle equals the sum of the remote interior angles
<span>so
m<XYT = m<X + m<Z
4x - 25 = x + 15 + 50 - 3x
4x - 25 = -2x + 65
6x = 90
x = 15
answer
x = 15
</span>
We need to set up a system, rather than a single equation, because there are two variables involved.
The first equation represents the fact that the two numbers are in a 3:2 ratio:

The second equation represents the fact that their sum is 35:

So, we have the following system:

Using the expression for x in the first equation, the second one becomes

which implies

Answer:
B changes at x = +2 where the others change at x = -2
Step-by-step explanation:
1. no 2. yes
Step-by-step explanation:
for the first one he would need 3 pounds to make 3 cups and for the second one no because he can make more than 3 cups, he can make 6, 1/8 times 6 is 3/4