Set up the following equations:
x represents the amount of blue books needed, and y represents the amount of red books needed.
Solve the first equation by dividing both sides by 9:
Rebecca would need 61 pages if she used the blue book.
Solve the second equation by dividing both sides by 7:
Rebecca would need 78 pages if she used the red book.
Subtract the red book's pages from the blue book's pages:
Rebecca would need
17 more pages if she used the red book instead of the blue book.
Make them common denominator
2/8 - 7/8 = -5/8
Solution: -5/8
It will be D by multiplying the numerator and the denominator by the unit rate of 6
Answer:
Option (2) is the answer.
Step-by-step explanation:
From the figure attached,
AB represents the length of Mr. Ray, ED represents the light post and the mirror was placed at point C.
Here AB = d = 6 feet
CD = w = 32 feet
BC = f = 9 feet
Since both the triangles ABC and EDC are similar, their corresponding sides will be in the same ratio.
h =
h = 21.33 feet
h ≈ 21.3 feet
Therefore, height of the light post is 21.3 feet.
Option (2) is the answer.
Answer:
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Step-by-step explanation:
slope = ((y2-y1)/2) / ((x2 - x1 )/2)
since x1 = x2
so x2 - x1 = 0
then ((y2-y1)/2) / 0 = undefined