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Shalnov [3]
3 years ago
5

What is the place and the value of 2.195

Mathematics
1 answer:
aksik [14]3 years ago
7 0
I don't know which digit do you mean, but it's not a problem to take a look at the whole number:

2.195

2 is for thousands
1 is for hundreds
9 is for tens
5 is for ones

Unless you meant 2.195 as a decimal (not a whole number - two thousand and one hundred ninety five), then:

2 is for ones
1 is for oneths
9 is for tenths
5 is for hundredths

In both situations each place has a 10 times stronger value than the digit to its right.
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9 + b is an expression

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Answer:

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A quantity with an initial value of 6200 decays continuously at a rate of 5.5% per month. What is the value of the quantity afte
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Answer:

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Step-by-step explanation:

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So, the value of quantity after 1 month, q_1 = Q- r \times Q

q_1 = Q(1-r)\cdots(i)

The value of quantity after 2 months, q_2 = q_1- r \times q_1

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From equation (i)

q_2=Q(1-r)(1-r)  \\\\q_2=Q(1-r)^2\cdots(ii)

The value of quantity after 3 months, q_3 = q_2- r \times q_2

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From equation (ii)

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Similarly, the value of quantity after n months,

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As 4 years = 48 months, so puttion n=48 to get the value of quantity after 4 years, we have,

q_{48}=Q(1-r)^{48}

Putting Q=6200 and r=5.5%=0.055, we have

q_{48}=6200(1-0.055)^{48} \\\\q_{48}=410.32

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