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AlekseyPX
3 years ago
12

A house has decreased in value by 34% since it was purchased. If the current value is $231,000, what was the value when it was p

urchased?
Mathematics
1 answer:
GenaCL600 [577]3 years ago
5 0

Answer:

309,540

Step-by-step explanation:

231,000 + 34%

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a band of 45 ewoks crash-landed in the forest last night. this sounds like a small problem, but the population will grow at the
kogti [31]

Given Information:

Starting population = P₀ = 45

rate of growth = 22%

Required Information:

Population every five years from this year to the year 2050 = ?

Answer:

Year \: 2020 = P(0) = 45e^{0} = 45\\\\Year \: 2025 = P(5) = 45e^{0.22*5} = 135\\\\Year \: 2030 = P(10) = 45e^{0.22*10} = 406\\\\Year \: 2035 = P(15) = 45e^{0.22*15} = 1,220\\\\Year \: 2040 = P(20) = 45e^{0.22*20} = 3,665\\\\Year \: 2045 = P(25) = 45e^{0.22*25} = 11,011\\\\Year \: 2050 = P(30) = 45e^{0.22*30} = 33,079\\\\

Step-by-step explanation:

The population growth can be modeled as an exponential function,

P(t) = P_0e^{rt}

Where P₀ is the starting population, r is the rate of growth of the population and t is the time in years.

We are given that starting population of 45 and growth rate of 22%

P(t) = 45e^{0.22t}

Assuming that the starting year is 2020,

Year \: 2020 = P(0) = 45e^{0} = 45\\\\Year \: 2025 = P(5) = 45e^{0.22*5} = 135\\\\Year \: 2030 = P(10) = 45e^{0.22*10} = 406\\\\Year \: 2035 = P(15) = 45e^{0.22*15} = 1,220\\\\Year \: 2040 = P(20) = 45e^{0.22*20} = 3,665\\\\Year \: 2045 = P(25) = 45e^{0.22*25} = 11,011\\\\Year \: 2050 = P(30) = 45e^{0.22*30} = 33,079\\\\

Therefore, the starting population of ewoks was 45 in 2020 and increased to 33,079 by 2050 in a time span of 30 years.

8 0
3 years ago
PLEASE ANSWER. QUESTION ABOUT GRAPHS.
Sav [38]
A)
160c / 20m
1c / (20/160)m
therefore, he takes 1/8 minutes to burn 1 calorie

b)

m = rise/run = 20/160 = 1/8

5 0
3 years ago
Which angles are congruent to each other?
KatRina [158]

Answer:

5 and 7

Step-by-step explanation:

5 and 7 are vertical angles. The others are supplementary

7 0
3 years ago
An eight grader has 18 coins in her pocket. The coins are all dimes and quarters. Their total value is 2.85. Find how much of ea
Luda [366]

Answer:

1 dimes and 9 quarters

Step-by-step explanation:

9 quarters = 2.75

1 dime = 10c

all together equals 2.85

7 0
3 years ago
Solve for x 4x+14 help me please
pochemuha
Factor 2 out of 4x+14
2(2x+7)
Hope this helps!
4 0
3 years ago
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