I think the most simple way to solve this is by writing out a few general expressions;
$40 - $10 = $30
$30 - 4x = y
$10 + y = z
X = Amount of Smoothies
Y = Total Amount left
Z = Total + the $10
Answer:
4.5
Step-by-step explanation:
→ Set up the direct proportion equation
z = kx
→ Substitute in the values
12 = 3k
→ Divide both sides by 3 to isolate k
4 = k
→ Substitute the value of k back into the original direct proportion equation
z = 4x
→ Substitute the value of z in
18 = 4x
→ Divide both sides by 4 to isolate x
4.5 = x
480 - - 240
2 negatives make a positive so it would be 480 + 240 which is 720 feet apart
1st one is 40
2nd is 4
3rd is 12
Answer:
C.
Step-by-step explanation:
Let and .
The slope of line m is given by
We plug in the values to get;
The line parallel to m also have slope,