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monitta
3 years ago
10

Five friends want to rent a go-cart track that costs $100. Each friend intends to contribute the same about. Susan used the five

-step problem-solving plan. After completing the solve step, how much money did she find that each friend will have to contribute to reach the goal? Enter you answer in the box.
Mathematics
2 answers:
elena-s [515]3 years ago
8 0

5 friends contribute x money to go to a cart that costs $100.
.
5x = 100
x = 100/5
x = 20
.
Each friend contributed $20 for the cart

Gemiola [76]3 years ago
6 0

20 dollars is ze answer


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s2008m [1.1K]

Answer:

The discount is the same.

Step-by-step explanation:

We need to find the ratios of both discounts.

41/50 = 61.5/75

If the question is True, this means that the ratios should be the same. So we have to cross multiply to find the answer.

75*41 = 50*61.5 = 3075

These two multiplication problems both equal 3075. Since the ratios are equal, the discounts are also equal.

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<h2>Answer:</h2><h2 />

If we have two functions f \ and \ g such that f(g(x))=x for every x in the domain of g, and g(f(x))=x for every for every xin  the domain of  f. If we prove this, then g is the invers function of f and denoted by f^{-1}

1. We need to prove whether f(g(x))=x. So:

f(x)=\frac{4}{5}x+1 \\ \\ g(x)=\frac{5x-5}{4} \\ \\ So: \\ \\ f(g(x))=\frac{4}{5}\left(\frac{5x-5}{4})+1 \therefore f(g(x))=\frac{4}{5}\left(\frac{5x-5}{4})+1

\therefore f(g(x))=x-1+1 \\ \\ \boxed{f(g(x))=x}

2. We need to prove whether g(f(x))=x. So:

g(f(x))=\frac{5(\frac{4x}{5}+1)-5}{4} \\ \\ \\ g(f(x))=\frac{4x+5-5}{4} \\ \\ \\ g(f(x))=\frac{4x}{4} \\ \\ \\ g(f(x))=x

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f(x) \ and \ g(x) are inverses to each other.

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