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ValentinkaMS [17]
3 years ago
11

How do you do this question

Mathematics
1 answer:
maxonik [38]3 years ago
8 0

Answer:

I am not sure about the actual answer but hopefuly you figure this out

Step-by-step explanation:

To get the number of boys and girls you do 3+5 to get 8. 120 divided by 8 is 15. so every digit in the ratio is 15 students. 15x3 is 45 and 15x5 is 75. there are 45 girls and 75 boys. 16/25 of the boys go climbing. There are 75 boys so you do 16x3 because 25x3 is 75 so 16x3 is 48. 48 boys go climbing. 120-48 is 72. and 27 boys go sailing.

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A town has a population of 4000 and grows at 3.5% every year. To the nearest year, how long will it be until the population will
Romashka [77]

18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

Step-by-step explanation:

The given is,

             Population of 4000

             Rate of grow 3.5% every year

             Population after few years 7500

Step:1

            Formula to calculate the population with the grow rate every year,

                                   F=P(1+r)^{t}..........................(1)

           Where,

                    F - Population after t years

                   P - Initial population

                    r - Rate of grow

                    t - No.of years

          From given,

                  F = 7500

                  P = 4000

                   r = 3.5%

        Equation becomes (1),

                    7500=4000(1+0.035)^{t}

                     \frac{7500}{4000} = (1+0.035)^{t}

                   1.875 = (1+0.035)^{t}

                   1.875 = (1.035)^{t}

       Take log on both sides,

              log 1.875 = (t)log 1.035

       Substitute log values,

                 0.2730= (t) 0.014940349

                          t = \frac{0.273}{0.014940349}

                             = 18.273

                          t = 18.273 year

                             or

                         t = 18 years 3 months 2 weeks

Result:

          18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

7 0
3 years ago
1.99x+6=2.50x can someone help me
Illusion [34]

Answer:

Step-by-step explanation:

1.99x + 2.50x = 4.49x

change equation

x=11.7647

6 0
2 years ago
Helppppppp!! Asappp!!!
neonofarm [45]

Answer:

13

Step-by-step explanation:

It would be 13 because you would square the 5 and 12 to get 25 + 144 which equals 169. Then you would take the square root of 169 which is 13. Hope this helps! :)

3 0
3 years ago
6 cousins inherited a total of 58 of their great aunt's assets which they divided evenly what fraction of their great aunt's ass
mina [271]

Answer:

9 1/9 per cousin

Step-by-step explanation:

if the aunt has 58 items to be distributed to 6 cousins, we would set a fraction of 58/6. performing that is 9 with 4/6 left over.

since there is 6 cousins, there will be 2/3 divided by 6 = 2/18, or 1/9

4 0
3 years ago
If the numbers 25, 30 ,40, 48 are in proportion, Middle terms are.....
zubka84 [21]

Step-by-step explanation:

it is 5/6 ..............

3 0
2 years ago
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