Answer:
26. H
Step-by-step explanation:
26. An acute angle just has to be less than 90 degrees. Therefore, H is the correct choice.
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The time it takes them working together to paint the room is 3.08 hours
<h3>Rational expression</h3>
Rational expression are equation written as a ratio of two expressions or equations.
If Wes can paint a certain room in 8 hours, she can paint 1/8 of the room in 1 hr
Similarly, if Sally can paint the same room in 5 hours, , she can paint 1/5 of the room in 1 hr
Determine the time it takes them to paint the room altogether.
Time together = x
Using the expression below to determine the value of x
1/x = 1/8 + 1/5
1/x = 5+8/40
1/x = 13/40
x = 40/13
x = 3.08
Hence the time it takes them working together to paint the room is 3.08 hours
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Subtract 9x from 23x yields 14x. This was done by subtracting algebraically the variables.
Step-by-step explanation:
Let a be the total score of Div. A
Let b be the total score of Div. B
given,

as equation 1.
and

as equation 2.
Now multiply equation 2 by 1/20 to eliminate b to solve for a.

take this new equation as equation 3.
now we will use equation 1 + equation 3 to eliminate b to solve for a.

Div.A total score = 600
Average Score = Total Score / Number of students.

360 degrees, because all quadrilaterals (shapes with 4 sides) have angles that add up to 360 degrees