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2 years ago

Can anyone please tell me if this is correct? If not help explain me the answer? Thank you

Mathematics

1 answer:

iris [78.8K]2 years ago

6 0

There is on equation to solve for x so I think it is wrong

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The sum of 3 consecutive numbers equal 87, find the numbers

boyakko [2]

Answer:

28, 29, 30

Step-by-step explanation:

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3 years ago

You have $5600. The best interest rate you can find is 3%

EleoNora [17]

Answer:

18 years

Step-by-step explanation:

The formula for computing accrued amount A for a principal of P at an interest rate of r(in decimal) compounded n times in a year for t years is given by

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

Note that r is percentage converted to decimal. So 3% = 3/100 = 0.03

We can rearrange the above equation to:

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

Taking logs on both sides

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

This gives

$log(\frac{A}{P}) =nt \times log(1 + \frac{r}{n})\\So,\\nt = \frac{log(\frac{A}{P})}{ log(1 + \frac{r}{n})}$

In this particular problem, n = 4, , A= 9600, P = 5600, r =0.03, so r/n = 0.03/4 = 0.0075

1 + r/n = 1+0.0075 = 1.0075

4t = log(9600/5600)/log(1.0075) = log(1.714) / log(1.0075) = 0.234 /0.00325 = 72

t = 72/4 = 18 years

4 0

1 year ago

Lisa can paint a wall in four hours. Sissi needs eight hours to paint the wall. How long will it take if they are helped?

never [62]

Answer:

It will take very less time actually. we cannot say accurately because if two girls start to chat they will till next day

4 0

2 years ago

BRAINLIEST to whoever gets it right

STatiana [176]

The scale factor applied to the model is 8000. 8000 times one equals 8000

5 0

2 years ago

Please answer quick!!

rewona [7]

Answer: B

Step-by-step explanation:

$\frac{2}{7k}(k-7)$

$\frac{2k-14}{7k}$

$\frac{2k}{7k}-\frac{14}{7k}$

$\frac{2}{7}-\frac{2}{k}$

7 0

2 years ago