ANSWER

EXPLANATION
The sum of the interior angles of a triangle is

In a right angle triangle, one of the angles is already

Therefore the remaining two acute angle will add up to

This implies that,

We group like terms to get,

This gives us,

This gives,


We divide both sides of the equation by 3 to obtain,
If they placed 5 on each 8 plates that = 40. Therefore, they started off with 44 if they have 4 left over.
Answer:
See attachment
Step-by-step explanation:
We want to graph the system
2x+y=8
-x+2y=6
Let us rewrite the lines in slope intercept form:
y=-2x+8

The first line has a slope of -2 and a y-intercept of 8
The second line has a slope of 1/2 and a y-intercept of 3
We can no graph the lines as shown in the attachment.
Answer:
Y e s
Step-by-step explanation:
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