# The sum of Andy and Brett's ages is 44. Andy's age is 8 more than twice Bret's age. Find the solution.

2 months ago

## Solution 1

Guest #3379
2 months ago
Andy is 32, and Brett is 12. You gotta set up an equation.
a+b=44
a=2b+8
2b+8+b=44
b=12
a=32

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Heather and Joel bought a house for $157,200 and know that the house appreciates every year. They keep track of their house value for 5 years and model their data with the exponential equation y = 150000(1.004)12t How much will their house be worth in 8 years? Solution: Equation of the appreciation of the value of house is given by:- We need to find the worth of the house after 8 years So, that means time, t=8 Let us plug t=8 in the equation So, we get, y=150000*1.467021 y=220053.20 In 8 years the value appreciates to$220053.20, that s, worth of house after 8 years=$22005320 Solution 2 We have to find value of the house in 8 years so we will plug t=8 years in given equation. Hence house will worth approx$220053.20 in 8 years.

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