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dem82 [27]
3 years ago
8

In the xy-plane, the point (p,r) lies on the line with equation y=x+b, where b is a constant. The point with coordinates (2p,5r)

lies on the line with equation y=2x+b. If p≠0, what is the value of r/p?
A)
2/5

B)
3/4

C)
4/3

D)
5/2
Mathematics
2 answers:
pentagon [3]3 years ago
5 0

Answer:

hi

Step-by-step explanation:

I'm anmol kulkar from India thanks for free points by

musickatia [10]3 years ago
3 0

Answer:

The correct answer is B,

3/4.

Step-by-step explanation:

choices A and D, you may have incorrectly formed your answer out of the coefficients in the point (2p,5r). If you picked Choice C, you may have confused r and p.

y=2x+b gives:

5r=2(2p)+b

5r=4p+b

b = 5r−4p.

Next, we can set the two equations equal to b equal to each other and simplify:

b=r−p=5r−4p

3p=4r

Finally, to find

r/p

divide both sides of the equation by p and by 4:

3p=4r

3=4r/p

3/4=r/p

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