Answer: The number of girls in the auditorium is represented by the algebraic expression y=(4x +72) /5
Step-by-step explanation:
Hi, to answer this question we have to analyze the information given:
- <em>Number of boys added: 18
</em>
- <em>Ratio of boys to girls: 5:4
</em>
So, the total number of boys is:
x + 18
Number of girls = y
Number of boys / number of girls = 5/4
(x+18) /y = 5/4
Solving for "y"
4 (x +18) =5 y
4x +72 = 5y
(4x +72) /5 = y
The number of girls in the auditorium is represented by the algebraic expression y=(4x +72) /5
Answer:
21.01 cubic metres
Step-by-step explanation:
We have to find the value of 1 cubic foot and then convert to cubic metre.
1 foot = 0.3048 m
1 cubic foot = 
= 0.02832 cubic metre
A volume of 742 cubic foot will therefore be:
742 * 0.02832 = 21.01 cubic metres
The volume in cubic metres is 21.01 cubic metres
Scores that are greater than 31 are significantly high.
Scores that are less than 11.4 are significantly low.
The test scores between 11.4 and 31 are not significantly low or significantly high.
<h3>How to Identify significance values?</h3>
We are given;
Standard deviation; s = 4.9
From the complete question, we are told to consider a value to be significantly low if its z score less than or equal to -2 or consider a value to be significantly high if its z score is greater than or equal to 2.
Thus;
2s = 2 * 4.9 = 9.8
Scores that are greater than 21.2 + 9.8 = 31 are significantly high.
Scores that are less than 21.2 - 9.8 = 11.4 are significantly low.
Thus, the test scores between 11.4 and 31 are not significantly low or significantly high.
Read more about significance values at; brainly.com/question/4621112
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3/7 for sure hope this helps
Answer:
x=5
Step-by-step explanation:
4×3x=12x
4×-2=-8
(12×x)-8=52
So you balance it to make it:
12x=60
60÷12=5
I hope this helps and please give brainliest and thank me
