20 - .07c = 17.13
20 - 17.13 = 2.87
2.87/7 = 41
Her call took 41 minutes
Answer:
y = 12
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
15 - 4y = - 21 - y
15 + - 4y = - 21 + - y
- 4y + 15 = - y - 21
Step 2: Add y to both sides.
- 4y + 15 + y = - y - 21 + y
- 3y + 15 = - 21
Step 3: Subtract 15 from both sides.
- 3y + 15 - 15 = - 21 - 15
- 3y = - 36
Step 4: Divide both sides by - 3.
- 3y/- 3 = -36/- 3
y = 12
I am so sorry if it is long and confusing, but, I hope this still helps!
The second box to the left side
Answer:
2πr is the formula to calculate
Step-by-step explanation:
Answer:
The coordinates of A could be anything in the form of (x, y, z) if you have a third axis. First you count where A is on the x-axis then the y-axis and if you have a 3-dimensional graph then the z-axis.
Step-by-step explanation:
