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Fed [463]
3 years ago
10

An element with mass 780 grams decays by 17.1% per minute. How much of the element is remaining after 19 minutes to the nearest

10th of a gram
Mathematics
1 answer:
Anit [1.1K]3 years ago
6 0
Step 1
Formulate a recursive sequence modeling the number of grams after n  minutes.
we have that
100%-17.1%-------------- > 82.9%------------> 0.829

a(n) = 780*[0.829<span>^n]
</span>
for n=19 minutes
a(19)=780*[0.829^(19)]=22.1121 g---------------> 22.1 g

the answer is 22.1 g
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Alona [7]

Answer: They have 775 miles left to be traveled

Step-by-step explanation:

Miles required to travel for vacation = 1,325 miles

Miles already traveled = Miles driven this week + miles driven today

= 420 miles + 130 miles

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Miles remaining to be covered =Miles required to travel for vacation --- Miles already traveled

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8 0
2 years ago
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What is 2/3 x 4 1/5 as a mixed fraction?
EleoNora [17]
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=2/3 x 21/5

Multiply the two numerators together and multiply the two denominators together

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Hope this helps! :)
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2 years ago
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VARVARA [1.3K]

Answer:

Solution :

{x,y} = {0/14261512,4}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

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// Plug this in for variable y in equation [1]

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Suppose m∠1 = x degree

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5 0
3 years ago
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