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EastWind [94]
3 years ago
6

kiley spent $20on ride and snacks at the state fair.If x is the amount she spent on rides, and y is ther amount she spent on sna

cks, the total amount she spent can be represented by the equation x+y=20 is the relationship between x and y linear?is it proportional? explain
Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0

It is linear because it is a straight line when graphed. It is not proportional because there is not always a constant ratio between them.

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Step-by-step explanation:

When it means "evaluate the function", it's in essence asking us to see what the function spits out when we feed it a certain input. Our inputs are our x values, which spit out a y value.

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Let's look at where the function has an x value of 1. We see it near the bottom of the table and see the y value associated with the input is 7. So when the function is fed 1 as an input, it spits out 7.

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3 years ago
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amm1812

Answer:

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Step-by-step explanation:

Let y% of 5x is equal to \frac{x}{5}.

y\% \: of \: 5x =  \frac{x}{5}  \\  \\  \therefore \:  \frac{y}{100}  \times 5x =  \frac{x}{5}  \\  \\ \therefore \:  y =  \frac{x}{5 \times 5x}  \times 100 \\  \\ \therefore \:  y =  \frac{1}{25}  \times 100 \\  \\ \therefore \:  y = 4 \\  \\  \therefore \: 4\% \: of \: 5x \:  is \: equal \: to \:  \frac{x}{5}

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