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timama [110]
2 years ago
13

A washer and a dryer cost $1050 combined. The washer costs $100 more than the dryer. What is the cost of the dryer?

Mathematics
1 answer:
ollegr [7]2 years ago
3 0

Answer:

624

Step-by-step explanation:

1050/2

526-100

426- cost of washer

1050-426

624- cost of dryer

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How to show these 2 problems are inverses
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\bf \begin{cases}
f(x)=\sqrt[3]{7x-2}\\\\
g(x)=\cfrac{x^3+2}{7}
\end{cases}\\\\
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now
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or
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g[\ f(x)\ ]\implies g\left[\sqrt[3]{7x-2}\right]\implies \cfrac{\left[\sqrt[3]{7x-2}\right]^3+2}{7}
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thus f[ g(x) ] = x indeed, or g[ f(x) ] =x, thus they're indeed inverse of each other
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