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Brrunno [24]
3 years ago
15

The population of Anytown is 8000. It is predicted to increase by 5% in one year. What is the predicted population after one yea

r?
Mathematics
2 answers:
solmaris [256]3 years ago
8 0
800 is what I think
tatyana61 [14]3 years ago
7 0
8,000 + (5% x 8,000)=
(1 + 5%) x 8,000=
(100% + 5%) x 8,000=
105% x 8,000=
105 / 100 x 8,000=
105 x 8,000 / 100=
840,000 / 100=
The answer would be 8,400
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there are 270 at Colfax Middle School, where the ratio of boys to girls is 5:4. there are 180 students at Winthrop Middle School
ruslelena [56]

Colfax:

Add the ratio numbers together:

5 + 4 = 9

Divide total students by that:

270 / 9 = 30

Multiply each ratio by 30:

Boys = 30 *5 = 150

Girls = 30 * 4 = 120


Do the same for Winthrop:

4 +5 = 9

180 /9 = 20

Boys = 20 * 4 = 80

Girls = 20 * 5 = 100


Total students = 270 + 180 = 450

Total Girls = 120 + 100 = 220


Fraction that are girls = 220 / 450 which reduces to 22/45

4 0
3 years ago
How do i round 8.544 to the nearest hunderdth
mario62 [17]
8.54. The last number is low so it can not round up to 5
5 0
3 years ago
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What is the degree measure of an arc 4 ft. long in a circle of radius 10 ft.?
Dafna1 [17]
Arc length, (s)=(radius, r)(central angle, q)
s=rq
q=s/r
q=4/10
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8 0
3 years ago
Are the following equivalent -3x=-x-2x <br>​
valina [46]

Answer:

Yes.

Step-by-step explanation:

By adding like terms, -x - 2x = -3x. Therefore, they are equivalent.

4 0
3 years ago
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In high school, some students have been confused to believe that 22/7 is already the actual value of π or an acceptable approxim
jarptica [38.1K]

Answer:

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

Step-by-step explanation:

The formula for the absolute error is:

Absolute error = |Actual Value - Measured Value|

The formula for the relative error is:

Relative error = |Absolute error/Actual value|

I am going to consider the actual value of \pi as 3.14159265359.

In the case of 22/7:

22/7 = 3.14285714286.

Absolute error = |3.14159265359 - 3.14285714286| = 0.00126448927

Relative error = 0.00126448927/3.14159265359 = 0.00040249943 = 0.04%

In the case of 355/113

355/113 = 3.14159292035

Absolute error = |3.14159265359 - 3.14159292035| = 0.00000026676

Relative error = 0.00000026676/3.14159265359 = 0.000000085 = 0.0000085%

Since it has smaller absolute and relative errors, 355/113 is a better aproximation for \pi than 22/7

5 0
3 years ago
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