Answer:
Step-by-step explanation:
Solve ab + c = d for a. Start by subtracting c from both sides, which yields ab = d - c. Next, divide both sides by b:
ab d - c
---- = --------
b b
This yields:
d - c
a = --------
b
Answer:
F=0.4t
Step-by-step explanation:
Find the slope using the formula rise over run or y2-y2 over x2-x1
y2=72 y1=64 x2=25 x1=5
72-64/25-5=8/20=0.4
Answer:
I want to say that the hours worked was 4. I hope that is right.
Step-by-step explanation:
30% off of $60 is 42
16*2=32 and 32+42=74
124-60=64
16*4=64
so he would have worked 4 hours for $64 and a fee of $60
64+60= 124
Answer:
5x-4y = -32
Step-by-step explanation:
We can first get an equation in point slope form since we have a point and a slope
y-y1 = m ( x-x1) where m is the slope and (x1,y1) is a point on the line
y- -2 = 5/4(x- - 8)
y+2 = 5/4 (x+8)
Multiply each side by 4 to get rid of fractions
4(y+2) = 5/4 *4 (x+8)
4(y+2) = 5(x+8)
Distribute
4y+8=5x+40
Subtracy 4y from each side
8 = 5x-4y+40
Subtract 40 from each side
8-40 = 5x-4y
-32 = 5x-4y
5x-4y = -32