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3 years ago

8

An ant colony has a population size of 4, 000 ants and is increasing at a rate of 3% per week. How long will it take until the a

nt population has doubled? Round your answer to the nearest tenth.

1 answer:

PtichkaEL [24]3 years ago

6 0

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What times what equals 225?

defon

I got 5 times 45 because I multiplied by 5 to get my answer.

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3 years ago

Determine the best method to solve the system of equations. Then solve the system.

maxonik [38]

Answer:

x=1 y = -1/2

(1,-1/2)

Step-by-step explanation:

7x-2y=8

5x+2y=4

I would use elimination since we have 2y in one equation and -2y in the other

7x-2y=8

5x+2y=4

--------------------

12x = 12

Divide each side by 12

12x/12 = 12/12

x =1

The substitute back into equation 2

5(1) +2y = 4

5 +2y = 4

Subtract 5

5-5+2y = 4-5

2y = -1

Divide by 2

2y/2 = -1/2

y = -1/2

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3 years ago

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If i have 35% of a phones and its now $78 how much was the phone before the discount

denpristay [2]

Step-by-step explanation:

Multiply $78 by by 65/100 to determine the original price.

78 can be put over 1.

<u>Multiply</u><u>:</u>

$\frac{78}{1} \times \frac{65}{100} = \frac{5070}{100}$

<u>Simplify by dividing the numerator and denominator by 100:</u>

$\frac{5070 \div 100}{100 \div 100} = \frac{50.70}{1}$

The original price was $50.70.

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3 years ago

PLS HELP FAST IM BEING TIMED!!!

Lina20 [59]

Answer:

C

Step-by-step explanation:

hope it helps

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Step-by-step explanation:

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