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Zielflug [23.3K]
3 years ago
12

In the year 2000 the number of hazardous waste sites in state x was 8 less than twice the number of hazardous waste sites in sta

te Y. Suppose there were 34 such sites in state x. Write and solve an equation to find the number of hazardous waste sites in state y, n, in the year 2000
Mathematics
1 answer:
kozerog [31]3 years ago
7 0

Answer:

In the year 2000 the number of hazardous waste sites in state y was 21

Step-by-step explanation:

Let

x ----> the number of hazardous waste sites in state x in the year 2000

y ----> the number of hazardous waste sites in state y in the year 2000

we know that

x=2y-8 ----> equation A

x=34 ----> equation B

Solve the system of equations by substitution

Substitute equation B in equation A

34=2y-8

Solve for y

Adds 8 both sides

34+8=2y

42=2y

Divide by 2 both sides

y=21

therefore

In the year 2000 the number of hazardous waste sites in state y was 21

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2 years ago
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Step-by-step explanation:

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3 years ago
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3 years ago
1
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Answer:

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Step-by-step explanation:

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Lets 8 t-shirts be represented by 8t

So for our equation we will place and 8

<h3>Our equation: 8t</h3><h3 />

Now it says we have a coupon that subtracts 4 dollars from our total

<h3>Our equation: 8t-4</h3><h3 />

The final part to add to our equation says that our total before tax was 36 dollars

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-Side note, make sure to spell your question right. It was a tad bit confusing to read at the start.

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3 years ago
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