3 years ago

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Mathematics

1 answer:

Lapatulllka [165]3 years ago

4 0

A.) the greatest amount of boxes would probably be 8
B.) the amount of cars would be 5 and the airplanes would be 3

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The half-life of radium is 1690 years. If 20 grams are present now, how much will be present in 250 years?

Aneli [31]

Answer:

18.05 g

Step-by-step explanation:

The multiplier of the initial quantity is ...

(1/2)^(t/1690)

so, for t=250, this becomes ...

(1/2)^(250/1690) ≈ 0.902545

Then the quantity remaining of the initial 20 g is ...

(20 g)(0.902545) ≈ 18.05 g

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4 years ago

Solve for x 4 - ( 2x - 2) + 3x = 4(x + 5) - 3(x-2)-10

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Step-by-step explanation:

4 + x + 3x = 4 ( 5x ) - 3 ( x ) - 10

4 + x + 3x = 4 + 5x - 3 + x - 10

x + 3x + 5x + x = 4 + 4 - 3 - 10

10x = 21

10x % 10 = 21 % 10

x = 2,1

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3 years ago

Pattie is itemizing deductions on her federal income tax return and had $4800

muminat

Answer: 1500

Step-by-step explanation:

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3 years ago

Samuel pulls two coin out of his pocket randomly without replacement. If his pocket contains one nickel, one dime, and one quart

Ilya [14]

2:3 3 possible options (quarter+dime= 35, quarter+nickel=30, dime+nickel=15) two options are more than 20

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4 years ago

I need help asap im timed

Iteru [2.4K]

Answer:-

Refer to attachment for the required solution.

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3 years ago

Read 2 more answers