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Llana [10]
3 years ago
6

highland has a population of 12,200. Its population been increasing at a rate of 300 poeple per year. Lowville has a population

of 21,000 and is declining by 250 people per year. Assuming the rates don't change, in how many years will the populations be equal
Mathematics
1 answer:
Amanda [17]3 years ago
3 0

Answer:

  • 16 years

Step-by-step explanation:

<u>Equation for the Highland population</u>

  • 12200 + 300x

<u>Equation for the Lowville population</u>

  • 21000 -250x

<u>Populations are equal after</u>

  • 12200 + 300x = 21000 - 250x
  • 300x + 250x = 21000 - 12200
  • 550x = 8800
  • x = 8800/550
  • x = 16 years
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The goals against average (A) for a professional hockey goalie is determined using the formula A = 60 a equals 60 left-parenthes
Marina CMI [18]

Answer:

Option 1 - \frac{At}{60}=g

Step-by-step explanation:

Given : The goals against average (A) for a professional hockey goalie is determined using the formula A=60(\frac{g}{t} ). In the formula, g represents the number of goals scored against the goalie and t represents the time played, in minutes.

To find : Which is an equivalent equation solved for g?

Solution :

Solve the formula in terms of g,

A=60(\frac{g}{t})

Multiply both side by t,

At=60g

Divide both side by 60,

\frac{At}{60}=\frac{60g}{60}

\frac{At}{60}=g

Therefore, option 1 is correct.

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2 years ago
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4x-y=2 <br>what is the solution ​
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Step-by-step explanation:

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A man started from his home and drives 30km to the south and then 86km to the north . How far is he from his home now ??
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Please Help! Best gets Brainlest
Len [333]

Answer:

A. g=11

Step-by-step explanation:

We want to find which choice makes the equation true. Let's plug in each answer choice.

A. g=11

26=7(11-9)+12      

26= 7(2)+12              Solve inside the parentheses.

26= 14+12                 Multiply 7 and 2.

26= 26                      Add 14 and 12.

This answer must be correct, but let's check the other choices .

B. g=12

26=7(12-9)+12      

26= 7(3)+12              Solve inside the parentheses.

26= 21+12                 Multiply 7 and 3.

26≠33                       Add 14 and 12.

This choice is not correct.

C. g= 13

26=7(13-9)+12      

26= 7(4)+12              Solve inside the parentheses.

26= 28+12                Multiply 7 and 4.

26≠40                      Add 28 and 12.

This is also not correct.

D. g= 14

26=7(14-9)+12      

26= 7(5)+12              Solve inside the parentheses.

26= 35+12                 Multiply 7 and 5.

26≠47                       Add 35 and 12.

This choice is not correct either.

The value of g that make the expression 26=7(g-9)+12 a true statement is A. g=11.

5 0
2 years ago
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