Use the Pythagprean theorem:
![c^2=a^2+b^2](https://tex.z-dn.net/?f=c%5E2%3Da%5E2%2Bb%5E2)
We have:
![a=9;\ c=13](https://tex.z-dn.net/?f=a%3D9%3B%5C%20c%3D13)
Substitute:
Answer: The bill was $150 without tip and 172.50 with tip
Step-by-step explanation:
Answer:
32 days
Step-by-step explanation:
Assume that the jar is full initially, containing 24 oz. After how many withdrawals of 3/4 oz will the jar be empty?
24 - (3/4)n = 0, or
24 = (3/4)n, or 96 = 3n. Dividing both sides by 3, we get n = 32.
The jar will be empty after 32 days.
2 is the other factor. 24/2= 12
20/2=10
36/2=18
Answer:
see explanation
Step-by-step explanation:
The absolute value always returns a positive result, however the expression inside can be positive or negative, that is
4x - 1 = 7 OR 4x - 1 = - 7
4x - 1 = 7 ( add 1 to both sides )
4x = 8 ( divide both sides by 4 )
x = 2
OR
4x - 1 = - 7 ( add 1 to both sides )
4x = - 6 ( divide both sides by 4 )
x =
= -
= - 1.5
Solutions are x = - 1.5 or x = 2