Answer:
x equals 30
Step-by-step explanation:
An equilateral triangle adds up to a total of 180 degrees so divided 60 into two and you get 30
5/4 = 75/g....cross multiply because this is a proportion
5g = 300
g = 300/5
g = 60
so in 2nd semester, there were 75 students in art class and 60 students in gym class....for a total of 135 students.
1st semester....ratio was 2:7...added = 9
art : 2/9(135) = 270/9 = 30 <=== art class had 30
gym: 7/9(135) = 945/9 = 105 <=== gym class had 105
Answer:
Step-by-step explanation:
x1 y1 x2 y2
-2 -2 0 3
ΔY 5
ΔX 2
slope= 2 1/2
B= 3
Y =2.5X +3
Answer:
approximately 56 cents
Step-by-step explanation:
4.5/8
Answer: 323
Step-by-step explanation:
The formula to calculate the sample size for proportion is given by :_

Given : Significance level : 
Critical value : 
Margin of error : 
The proportion of successes : 
Now, the required sample size will be :-

Hence, the minimum required sample size = 323