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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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A shopper bought 7 ears of corn and 6 pounds of bananas and paid $5.15. At the same store, another shopper bought 4 ears of corn
Novay_Z [31]

Answer:

$0.70 per ear of corn

Step-by-step explanation:

Let c = Ear of corn

Let b = pound of bananas

First shopper:

7c + 6b = $5.15

Second Shopper:

4c + 1b = $1.85

Solve one equation for b since you are solving for c:

4c + 1b = $1.85

b = $1.85 - 4c

Substitute into other equation:

7c + 6b = $5.15    <---  b = $1.85 - 4c

7c + 6 ($1.85 - 4c) = $5.15

7c + $11.1 - 24c = $5.15

-17c + $11.1 <em>- $11.1</em> = $5.15 <em>- $11.1</em>

-17c <em>/-17</em> = -$11.85 <em>/-17</em>

c = $0.70 per ear of corn

Leave a like and mark brainliest if this helped

3 0
3 years ago
Please help me if you know, thank you!!
Oduvanchick [21]
GG easy
I=(r)(t)(P)P=principalr=rate in decimalt=timei=interest
so just plug in what you know to solve for what you don't know
first oneI=(0.05)(3)(100)
I=15

2nd one20=(0.04)(t)(500)20=20tdivide by 20 both sides1=tt=1
3rd one35=(0.10)(7)(P)35=0.70Pdivide both sides by 3550=PP=50

4th one6=(r)(2)(200)
6=400rdivide both sides by 4000.015=rconvert to percent1.5%=r
4 0
3 years ago
PLS HELP ME I NEED HELP
tia_tia [17]

Answer:

Net A

Step-by-step explanation:

Net A fits best because the other options make an open prism or a prism who's sides overlap.

4 0
3 years ago
When x = 5, the value of the expression
Novay_Z [31]

Answer:

Your question does not make sense.

Step-by-step explanation:

5 0
3 years ago
The expression c- 0.25c can be used to find the cost of an item on sale for 25% off. Which expression below is equivalent to c-
Usimov [2.4K]

Answer:

0. 33 por que los jamones sivieron a 15 pesos y mi mama se va asta otro lado para compralo

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3 years ago
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