Show how to use substitution or elimination to solve the following system of equations. Write the solution as an ordered pair.
1 answer:
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Answer:
Your answer will be
y=2x-15.5
Step-by-step explanation:
Hi, there you must know the slope-intercept form which is
y=mx+b
m=slope
b=y-intercept
You can also use
the slope formula which is
in this case
it will look like this
=
=-2
So the slope is -2
Now we will find the y-intercept
-7.5=2(4)+b
-7.5=8+b Subtract 8 both sides
-15.5=b
Your y-intercept is -15.5
Hope this helps
Answer:
5. P = 23 m
A = 15
6. P = 24.4 in
A = 15.3
Step-by-step explanation:
Area formula of a triangle is A = 1/2 bh
Area formula of a parallelogram is A = bh
5. The height of a triangle is perpendicular to the base.
A = 1/2 * 10 * 3
A = 15
6. The height of the parallelogram is also perpendicular to the base.
A = 9 * 1.7
A = 15.3
Perimeter means you add all the side lengths.
5. The side lengths are 5m, 8m, and 10m. Adding those together, you get 23m.
6. A parallelogram has congruent opposite sides. That means your side lengths are 9 in, 3.2 in, 9 in and 3.2 in. Adding those together, you get 24.4 in.
Answer:
check.
Step-by-step explanation:
I did the table in the picture below. To understand it you only need to know that the ^ only is true when both propositions (left and right) are true.
