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2 years ago

3. Consider the equations 8 + x = n.

Mathematics

1 answer:

Scrat [10]2 years ago

3 0

If n is a negative number, x would be less than -8.

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adell [148]

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2 years ago

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Twenty-two more than a number is 47

Karo-lina-s [1.5K]

Answer:

the number is 25

Step-by-step explanation:

If the number is n, then twenty-two more is n + 22

which equals 47, so n+ 22 = 47

n = 47 - 22 = 25

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2 years ago

a person invest in 9000 in a bank. the bank pays 5% interest compounded semi annually. to the nearest tenth of a year, how long

QveST [7]

Answer:

10.1 years.

Step-by-step explanation:

It is given that,

Principal = 9000

Rate of interest = 5%

No. of times interest compounded = 2 times in an year

Amount after certain time = 14800

The formula for amount:

$A=P(1+\frac{r}{n})^{nt}$

where, P is principal, r is rate of interest, n is no. of times interest compounded in an year and t is time in years.

Substitute the given values in the above formula.

$14800=9000(1+\frac{0.05}{2})^{2t}$

$\frac{14800}{9000}=(1+0.025)^{2t}$

$1.644=(1.025)^{2t}$

Taking log both sides.

$\log(1.644)=\log(1.025)^{2t}$

$\log(1.644)=2t\log(1.025)$ $[\because \log a^b=b\log a]$

$\frac{\log(1.644)}{2\log(1.025)}=t$

$t=10.066$

$t=10.1$

Therefore, the required time is 10.1 years.

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3 years ago

Please helpppppppppp<br>

sp2606 [1]

Answer:

Step-by-step explanation:

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2 years ago

Find the circumference of a circle that has a radius of 212 mm

IceJOKER [234]

Answer:

1332.04

Step-by-step explanation:

C=2πr=2·π·212≈1332.03529

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3 years ago

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