Answer:
A. the difference of two squares
Step-by-step explanation:
we are given
we can write
so, we can see that
x^2 is square
11^2 is also square
so,
It means that
two squares are subtracted
so, it is difference of two squares
so,
A. the difference of two squares
Set it up as a ratio. $5.25/5 = $1.05 per notebook
Then solve your equation by multiplying the cost by 3. 3 * $1.05 = $3.15
Answer:
40 problems in 100 minutes
Step-by-step explanation:
This is a ratio problem.
You first divide 30 minutes by three to get how many problems she can do in 10 minutes. What you do to one side you do to the other side. So then, you should have 4 problems in 10 minute. Then, you multiply 10 by 10 and 4 by 10 to get 40 problems in 100 minutes.
Percentage of students with GPA between 1.5 and 3.5 is 75% and Percentage of students that don't belong to freshmen is 73.9%.
<h3>How to Calculate the Percentage?</h3>
1) Total number of households with computer = 111,804
Percentage of Cincinnati households with computer = 82.1%
Thus;
Number of Cincinnati households with computer = 82.1% * 111804 ≈ 91791
2) Total number of students = 854
Percentage of students with GPA between 1.5 and 3.5 = 100 - (11 + 14) = 75%
3) Total number of students = 854
Number of freshmen = 223
Thus;
Percentage of students that don't belong to freshmen = 1 - (223/854) = 1 - 0.2611 = 0.7389 ≈ 73.9%
4) We are given;
17% of the 198 seniors are on Academic Watch
10% of 223 freshmen are on Academic watch
Thus;
a) seniors on academic watch = 17% * 198 ≈ 34
b) freshmen on academic watch = 10% * 223 ≈ 22
c) Number of more seniors that freshmen on academic watch = 34 - 22 = 12
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As measured by the MAD, the variability ratio is
(MAD of 6th grade heights)/(MAD of 7th grade heights) = 1.2/0.6 = 2.0
The 4th selection is appropriate:
2.0
