Answer:
24 degrees
Step-by-step explanation:
If the right angle is 90 degrees, and one side of the right angle is 66 degrees, we must subtract 66 from 90. It's 24.
Less than 5 is your answer
Answer:
23pupils
Step-by-step explanation:
Given parameters:
Number of 18th grade boys this year = 18
Percentage decrease = 28%
Unknown:
How many 8th grade teams were there last year = ?
Solution:
Since this is a percentage decrease, ;
Number of pupils this year = Number of pupils last year - (28% x 18 )
18 + (28% x 18 ) = Number of pupils last year
Number of pupils last year = 23pupils
Area of a rectangular yard:
A 1 = L x W = 7 x * 6 x = 42 x²
Area of a pool :
A 2 = r² π = ( 2 x )² π = 4 x² π
A = A 1 - A 2 = 42 x² - 4 x² π
The answer must be in terms of π:
B ) 42 x² - 4 x² π
