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KATRIN_1 [288]
3 years ago
15

Factor out the coefficient of the variable.

Mathematics
1 answer:
Serga [27]3 years ago
8 0

\dfrac{3}{10}y-\dfrac{2}{5}=\dfrac{1\cdot3}{5\cdot2}y-\dfrac{1\cdot2}{5\cdot1}=\dfrac{1}{5}\left(\dfrac{3}{2}y-2\right)\\\\\\1.1x+9.9=1.1\cdot x+1.1\cdot9=1.1(x+9)

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trasher [3.6K]

Given:

Principal = Rs. 2000

Rate of interest = 20% p.a. compounded quarterly.

Time = 1 year

To find:

The compound interest.

Solution:

Formula for amount:

A=P\left (1+\dfrac{r}{n}\right)^{nt}

where,

P = Principal

r = Rate of interest

t= Time

n = number of times interest compounded in an year.

Putting P=2000, r=0.2, n=4 and t=1, we get

A=2000\left (1+\dfrac{0.2}{4}\right)^{4(1)}

A=2000\left (1.05\right)^{4}

A=2000\left (1.21550625\right)

A=2431.0125

Now, the compound interest is

C.I.=A-P

C.I.=2431.0125-2000

C.I.=431.0125

Therefore, the compound interest is Rs 431.0125.

3 0
3 years ago
Fiona can type 60 words a minute. <br> How many words can be typed in 10.5 minutes?
Nina [5.8K]

Answer:

630 word

10.5 minute: 10×60+0.5×60=600+30=630 second

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?=630

5 0
3 years ago
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Harlamova29_29 [7]

Answer:

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Step-by-step explanation:

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3 years ago
If f(x) = 7x-19<br> then f(4)=?
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Answer:

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Step-by-step explanation:

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