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olasank [31]
2 years ago
15

The population of a certain city decreased by 18,000 people. Write a signed number to represent this population change.

Mathematics
1 answer:
Burka [1]2 years ago
3 0

Answer:

Answer

Step-by-step explanation:

Step-by-step explanation

You might be interested in
09. Find the rate A sum of money doubled itself in 15 years. In how many years will it become 8 times of itself?​
tamaranim1 [39]

Answer:

45 years

Step-by-step explanation:

Let the sum be x and CI=2x

We know that

CI=P(1+100R)T

2x=x(1+100R) ^15

(1+100R)^15=2                

Let m be the number of years.

Therefore,

x(1+100R)m=8x

(1+100R)m=23

(1+100R)m=[(1+100R)^15]3          

From eqn(1)

(1+100R)m=(1+100R)45

On comparing both power, we get

m=45 years

5 0
2 years ago
Solve this equation y + 9 = 9
matrenka [14]

y + 9 = 9

Subtract 9 to both sides to isolate the 9 on the y. Whatever you do on one side you have to do it to the other side, your answer should be

y + 9 = 9

- 9      - 9

y = 0

5 0
3 years ago
Read 2 more answers
What is the volume of a triangular prism that is 10cm long, 7 cm wide and 4 cm high
Semmy [17]
I think the answer might be 280
4 0
3 years ago
(7,5), (r,9) m=6<br><br> What is r?
Igoryamba

Answer:

The answer is that r = 7/6

Step-by-step explanation:

Given point: (7, 5)

Given slope: m = 6

Use the point slope form of the equation:

y - y1 = m(x - x1)

y - 5 = 6(x - 7)

y - 5 = 6x - 7

y = 6x + 2

Now, find r for the point (r, 9) by substitution:

9 = 6x + 2

6x + 2 = 9

6x = 7

x = 7/6

Proof:

y = 6x + 2

f(x) = 6x + 2

f(7/6) = 6(7/6) + 2

= 42/6 + 2

= 7 + 2 = 9, giving (7/6, 9). r = 7/6

Hope this helps! Have a great day!

4 0
3 years ago
(NEED HELP WITH NUMBER 1!!!)
alexandr1967 [171]

Answer:

35 ia the answer sorry if im wrong

7 0
3 years ago
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