After 4 minutes of reading, Aaron was on page 14 of his book. After 8 minutes he was on page 20. Which equation models the page number, y in terms of minutes x? A. y=-8x+1.5
B. y=1.5x+8
C. y=8x+1.5
D. y=-1.5x+8

Given:

After 4 minutes of reading, Aaron was on page 14 of his book.

After 8 minutes he was on page 20.

To find:

The equation that models the page number, y in terms of minutes x.

Step-by-step explanation:

Let  y be the page number after x minutes of reading.

After 4 minutes of reading, Aaron was on page 14 of his book. So, the line must be passes through (4,14).

After 8 minutes he was on page 20. So, the line must be passes through (8,20).

The equation of line which passes through two points is

The required line passes through (4,14) and (8,20), so the equation is

Add 14 on both sides.

Therefore, the correct option is B.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

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