Answer:
16 units
Step-by-step explanation:
this rectangle is nice to us. its side lines are clearly parallel to the coordinate axis.
A starts at x=1, y=2.
B is straight above with x=1, y=7
so, how long is AB ? it is just the difference in y direction 7-2=5.
C is then on the same y height as B, and is just a bit to the right (bigger x value) with x=4, y=7
what is the distance BC ? just the difference in x 4-1=3.
since it is a rectangle, the other 2 sides are a "copy" of these first 2 sides.
so, another 5 and 3.
therefore, the perimeter of the rectangle is
2×5 + 2×3 = 16 units of the coordinate system.
Answer: $170.25 + $3.78x = $586.05
Step-by-step explanation:
Answer:
(f ∘ g)(4) = 38.23
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Answer:
(a)x + y = 58 and x = y + 14
(b) You sold 36 and your friend sold 22.
Tickets that you sold = x
Tickets that your friend sold = y
Together, the two of you sold 58 tickets.
x + y = 58
You sold 14 more than your friend
x = y + 14
So the two equations are:
x + y = 58
x = y + 14
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Construct system of equations and solve for x and y
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x + y = 58 ------------ (1)
x = y + 14 -------------(2)
Substitute equation (2) into equation (1)
(y + 14) + y = 58
y + 14 + y = 58
2y + 14 = 58
2y = 58 - 14
2y = 44
y = 22 ---------------- Substitute into equation (2)
x = y + 14
x = 22 + 14
x = 36
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Find the tickets you and your friend sold
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you = x = 36
your friend = y = 22
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Answer: (a) x + y = 58 and x = y + 14
(b) You sold 36 and your friend sold 22.
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