All categories

2 years ago

HELP ME!!! Then I will help you on a question.

Mathematics

1 answer:

Firlakuza [10]2 years ago

5 0

Answer:

$150

Step-by-step explanation:

Let the account earns 5% APR as simple interest for the invested principal.

Now, the formula of simple interest gives that,

$A = P(1 + \frac{rt}{100})$ , where A is the final amount, P is the principal amount invested, r is the % of interest and t is the number of years for which the principal is invested.

So, the interest earned will be given by, $I = P \times \frac{rt}{100}$

Hence, in our case, $300 is invested for 10 years at a simple interest of 5%. So, $I = 300\times \frac{5 \times 10}{100} = 150$ dollars.

Therefore, the amount of interest earned will be $150. (Answer)

You might be interested in

12 bars of soap for $8.69

Deffense [45]

Wow… how is this a question? .-.

8 0

2 years ago

Solve the equation for the indicated variable S=2πrh+2πr²<br> Solve for h

valina [46]

Answer:

Good luck :)

Step-by-step explanation:

S=2πrh+2πr ²

subtract 2πr ² from each side

S -2πr ² = 2πrh

divide by 2πr from each side

(S -2πr ² )/ 2πr = h

4 0

3 years ago

A poll asked 1057 American adults if they believe there was a conspiracy in the assassination of President Kennedy, and found th

AVprozaik [17]

Answer:

The 95% confidence interval of the proportion of Americans who believe in the conspiracy is $0.551< p < 0.610$

Step-by-step explanation:

From the question we are told that

The sample size is n =1057

The number that believe there was a conspiracy is k = 614

Generally the sample proportion is mathematically represented as

$\^ p = \frac{614}{1057 }$

=> $\^ p = 0.5809$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }$

=> $E = 1.96 * \sqrt{\frac{0.5809 (1- 0.5809)}{1057} }$

=> $E = 0.02975$

Generally 95% confidence interval is mathematically represented as

$\^ p -E < p < \^ p +E$

=> $0.5809 - 0.02975< p < 0.5809 + 0.02975$

=> $0.551< p < 0.610$

4 0

2 years ago

When you convert from a large unit such as pounds or minutes to a smaller unit as ounces or seconds why do you use multiplicatio

Ronch [10]

Hope this helps:))))))

6 0

2 years ago

A pizza dough recipe calls for 6 1/2 cups of flour. The recipe makes 37 1/2 ounces of dough. How many ounces of dough does 1 cup

NemiM [27]

Answer:

$n = 5\frac{10}{13}$

Step-by-step explanation:

Given

$Call = 6\frac{1}{2}$ cups

$Recipe = 37\frac{1}{2}$ ounce

Required

Number of ounces per cup (n)

To do this, we simply divide the Recipe by the call

So, we have:

$n = \frac{Recipe}{Call}$

$n = 37\frac{1}{2} \div 6\frac{1}{2}$

Express as improper fraction

$n = \frac{75}{2} \div \frac{13}{2}$

Rewrite as:

$n = \frac{75}{2} * \frac{2}{13}$

$n = \frac{75}{13}$

$n = 5\frac{10}{13}$

3 0

2 years ago