Answer:15
Step-by-step explanation:
If 85% pass then 15% failed and 15% of 1,200 is 180 so 180 people failed.
Answer:
x=118
y=37
Step-by-step explanation:
Since the lines are parallel:
Alternate Exterior angles are congruent, so x=118.
Linear pairs are supplementry, so y+25+118=180.
y+25=62
y=37.
(hope this helps and nice username :P)
Answer:
The first quartile, Q1, is the median of {3, 5, 7, 8}. Since there is an even number of values, we need the mean of the middle two values to find the first quartile: .
Step-by-step explanation:
Example 1: Find the first and third quartiles of the set {3, 7, 8, 5, 12, 14, 21, 15, 18, 14}