Each person will get back $3.02
C is the midpoint of BD. If BC = x + 7 and CD = 8x, what is CD?
1 answer:
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Answer: 84
<u>Step-by-step explanation:</u>
Set up a proportion as follows:
Cross multiply: 12x = 7 × 144
Divide by 12: x = 7 × 12
Simplify: x = 84
Yes. That point is in the solution space.
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You can also figure out algebraically whether the point satisfies the inequality
y < 2x + 10
Substitute the numbers
3 < 2·2 + 10
3 < 14 . . . . . . . . . . . True. (2, 3) is a solution
_____
You can also figure out algebraically whether the point satisfies the inequality
y < 2x + 10
Substitute the numbers
3 < 2·2 + 10
3 < 14 . . . . . . . . . . . True. (2, 3) is a solution