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skelet666 [1.2K]

3 years ago

6

Suppose that the amount of algae in a pond doubles every 4 hours. If the pond initially contains 40 pounds of algae, how much al

gae will be in the pond after 12 hours?

1 answer:

Paul [167]3 years ago

7 0

320 pounds of algea. After 4 hours, it would be 80, After 8 hours, 160. After 12 hours, 320

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Please help!!!! What's the rule that represents the sequence 13, 27, 41, 55, ...?<br> Answers Below:

natka813 [3]

Answer:

B) 13+14 (n - 1)

Step-by-step explanation:

this is an arithmetic sequence

13 represent the first term

14 is a constant difference

7 0

2 years ago

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The population of a city increases by 2.2% per year. If this year's population is 230,000, what will next year's population be,

ahrayia [7]

Answer:

235,060

Step-by-step explanation:

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4 0

2 years ago

Solve 5x(x-4) using distributive property

vodomira [7]

Answer:

5x² - 20x

Step-by-step explanation:

multiply each term in the parenthesis by the 5x outside

5x(x - 4)

= (5x × x ) + (5x × - 4 )

= 5x² + (- 20x) = 5x² - 20x

4 0

3 years ago

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the price of a dress is $40.00. it went to sale at a discount of 25%. if the sales tax is 6% what is the final cost of the dress

Delvig [45]

So first you figure out what 25% of $40.00 is whitch would be $30.00. Then what i think you would do next is add 6% of the cost of the dress. 6% of $30.00 is $1.80. so $30.00 + $1.80 = $31.80 dollors for the dress.

8 0

3 years ago

Greg and Heather each opened a savings account today. Greg opened his account with a starting amount of $330, and he is going to

cluponka [151]

Set up two equations:

Greg = 330 + 75X

Heather = 660 + 45x

Set them to equal and solve for x:

330 + 75x = 660 + 45x

Subtract 330 from both sides:

75x = 330 + 45x

Subtract 45x from both sides:

30x = 330

Divide both sides by 30:

x = 330 / 30

X = 11

11 months they will have the same amount saved.

6 0

3 years ago