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Mamont248 [21]
3 years ago
10

In jungle one year monkey population increased in a ratio of 8:7 but the next year it is decreased in the ratio of 16:17.Tell ho

w many monkeys were in jungle after 2years if there were 2975 monkeys ?
Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0

Answer:

Population of monkeys after 2 years = 3200

Step-by-step explanation:

Total number of monkeys at the start = 2975

Increase ratio of monkey population one year = 8:7

∴ New population of monkeys after 1 year= Total\ population \times Increase\ ratio = 2975\times \frac{8}{7} =3400

Decrease ratio the next year = 16:17

∴  Population of monkeys after 2 years= New\ population \times Decrease\ ratio = 3400\times \frac{16}{17} =3200

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 Construct a 95% confidence interval estimate of the mean net change in LDL cholesterol after the garlic treatment. What does the confidence interval suggest about the effectiveness of garlic in reducing LDL​cholesterol?

sample mean = x-bar = 4.7
ME = 1.96*15.6/sqrt(43) = 4.663

95% CI: 4.7 - 4.663 < u < 4.7 + 4.663

5 0
4 years ago
8 (Picture) CONVERGENT AND DIVERGENT SERIES PLEASE HELP!!
djverab [1.8K]

Answer:

<em>The correct answer choice is:   B</em>

Step-by-step explanation:

<u>Culture A</u>

Initial number of cells = 1000

The number of cells is raised by 200 each day and every day thereafter.

So, the number of cells raised in one month(30 days) =200\times 30=6000

Thus, the total number of cells in culture A at the end of one month will be:  1000+6000=7000

<u>Culture B</u>

Initial number of cells = 1000

The number of cells is increased by 8% each day and every day thereafter.

<em>Formula for exponential growth is:</em>   A=P(1+r)^t, where P= Initial amount, A= Final amount, r= Rate of growth in decimal form and t= Time duration.

Using the above formula, the number of cells after 30 days will be.....

A= 1000(1+0.08)^3^0\\ \\ A=1000(1.08)^3^0= 10062.656...


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7 0
3 years ago
Determine whether the value of each power is positive or negative.
avanturin [10]
-10 negative -3 positive -2 positive 1- positive
8 0
3 years ago
HELP PLEASE ASAP I WILL MARK BRAINLIEST
prisoha [69]

Answer:

BC = 24

Step-by-step explanation:

FD = 36, FE = 15 and CD = 18

By secant theorem.

DE • DF = CD • DB

(36 - 15) • 36 = 18 • DB

DB = 42

BC = DB - CD

BC = 42 - 18

BC = 24

PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)

3 0
2 years ago
in 10 minutes a heart beats 700 time how many minutes will a heart beat 140 times? At what rate can a heart beat?​
posledela

Answer:

A heart will beat 140 times in 2 minutes

Step-by-step explanation:

700 ÷ 10 = 70

140 ÷ 70 = 2

5 0
3 years ago
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