Answer:
No, he switched the values for the variables.
15m + 2n, first you have to pair the matching variables, 8m and 7m along with the sign in front of them. so 8m(+7m), you would then add those then do the same with the other, +4n(postive) and -2n, so subtract 2 from 4 and get 2. put them together and it’s 15m+2
Answer:
8 cups of blue and 12 cups of red
Step-by-step explanation:
Combine 1/3 c of blue + 1/2 c of red = 5/6 c of purple.
(5/6)x = 20
x = (6/5)20 = 24
this is applied to each of the above measurements to show that you need 8 c of blue + 12 c of red.
Remark
The best way to answer something like this is to actually graph both equations. I have done that for you below.
Red Line: f(x) = 1/4x - 1
Blue Line: g(x) = 1/2x - 2
Now look at the answers.
A: The first one is incorrect. You don't need the graph to tell you that. The larger the number in front of the x, the steeper the line. Put another way, the larger the slope, the steeper the line. The y intercept is lower however.
B is wrong. g(x) is steeper, but the y intercept is lower not higher than f(x) [Negatives do strange things].
C:The g(x) is steeper (we've said that a couple of times), and it has a lower y intercept.
D is correct.
E is just wrong. Both parts are incorrect.
Answer:
4/1 +2
Step-by-step explanation:
2 is where you start
4 how high/low
1- how far to right