Answer:
Step-by-step explanation:
the fraction is right, but notice that the numerator and denominator are both divisible by 16.
64 divided by 16 is 4,
80 divided by 16 is 5.
Which expression represents 10 in rational exponent form?
1 answer:
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Answer:
a)
Since t is between 0 and 15, and the house was purchased 8 years ago, we have two pairs of values:
- t = 0, V(0) = 42000
- t = 8, V(8) = 67500
<u>Find the slope, m:</u>
- m = (67500 - 42000)/8 = 3187.50
The value of b is 42000, since at t = 0, V = 42000
<u>So the equation is:</u>
- V = 3187.50t + 42000
b)
The graph is attached.
When V = 72500, t = 9.6 (approximately)
c)
When V = 74000
- 74000 = 3187.5t + 42000
- 3187.5t = 32000
- t = 32000/3187.5
- t ≈ 10 years (rounded down)
d)
When V = 80250
- 80250 = 3187.5t + 42000
- 3187.5t = 80250 - 42000
- 3187.5t = 38250
- t = 38250/3187.5
- t = 12 years
