Answer:
(x, y) = (-2, 3)
Step-by-step explanation:
In this form, it is easy to determine the x- and y-intercepts of each equation. That makes it easy to graph the first one, but not so easy to graph the second one on the given form.
The x-intercept is found by solving for x when y=0. In the two equations, the x-intercepts are ...
x = 4
x = -8 . . . . . . not shown on the given grid
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The y-intercepts are found by solving for y when x=0. In the two equations, the y-intercepts are ...
y = 4/2 = 2
y = -8/-2 = 4
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For the second equation, you can solve for y to put it in slope-intercept form.
x -2y = -8
x +8 = 2y . . . . . add 2y+8
y = 1/2x +4 . . . . . . . slope = 1/2, y-intercept = 4 (which we already knew)
This means the graph of the second equation will have a rise of 1 for each run of 2 units to the right. Working to the left from the y-intercept, we find another point to be (-2, 3), a point 2 left and 1 down from the y-intercept. This point is also on the line produced by the first equation, so (-2, 3) is the solution to the system.
Answer:
So, she spends 3 hours more sleeping than doing the activities.
Step-by-step explanation:
Consider the provided information.
According to the graph, Avery spends 33% of time in sleeping and 19% of time in doing "other" activities.
There are 24 h in a day.
According to Sleep category: 33% of 24 is:
33 % of 24=0.33×24=7.92 h ≈8 hours
We are rounding to 8 hr because the solution should be in hours as per the question requirement.
Other category: 19% of 24 is:
19 % of 24=0.19×24=4.56 h ≈5 hours
The difference of time is:
8h-5h=3h
So, she spends 3 hours more sleeping than doing the activities.
$120 because the fencing of the patio would use up eight squares and each square in the picture is 3 meters so we would need 24 meters of fencing to cover up the entire patio. Since it cost $5 for one meter, 5*24 is $120.
-18? I didn’t know - numbers were squared..