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STatiana [176]
3 years ago
8

An element with a mass of 810 grams decays by 29.3% per minute. To the nearest minute, how long will it be until there are 10 gr

ams of the element remaining?
Mathematics
1 answer:
lakkis [162]3 years ago
6 0

Answer:

13

Step-by-step explanation:

i got it wrong but this was the correct answer

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B

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3 years ago
which description best describes the solution to the following system of equations y= -2x +3 y= -x + 1
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For this case we have the following system of equations:
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y = -x + 1
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 From here, we can clear the value of x.
 We have then:
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x = 2
 Then, we look for the value of y.
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y = -2 + 1

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 Answer:
 
The ordered pair solution of the system of equations, is given by:
 
(x, y) = (2, -1)
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2 years ago
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Solve for b. 3b+2(b-3)=4
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3 years ago
In a seafood stew, Erin wants to use lobster, crab, and shrimp. She wants one part lobster, two parts crab, and three parts shri
alukav5142 [94]

Answer:

Answer: (B) 3

Step-by-step explanation:

20x + 15(2x) + 10(3x) = 40

20x + 30x + 30x = 40

80x = 40

x = 40/80

x = 1/2

Find the amount of lobster

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Find the amount of Shrimp:

Shrimp = 3x = 3(1/2) = 3/2 pounds

Find the total pounds of seafood:

Total = 1/2 + 1 + 3/2 = 3 pounds

Answer: (B) 3

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