The slope of segment QV is given by

Now, given a line
with a certain slope
, all lines perpendicular to
have slope
such that

So, in your case, you have

Given:
Consider the given gallons are
gallons.
To find:
The number of quarts in
gallons.
Solution:
We know that,
1 gallons = 4 quarts
Using this conversion, we get




Therefore, there are 33 quarts in
gallons.
Answer:
$22.43
Explanation:
We can start by finding the amount that they should tip. The total bill is $78, so we should take 15% of 78 and add it to the total.
0.15 * 78 = 11.7
78 + 11.7 = 89.7
This means that the total cost of the bill, with a tip, is $89.70.
Since there are 4 people, we have to split this total into 4 if they all want to pay equally.
89.70 / 4 = 22.425 = $22.43 !
Hope this helps