I need this soon, so please hurry!

Answers

Answer 1

Answer: I = P x r x t

P is the principal amount, $420.00.

r is the interest rate, 3.5% per year

t is the time involved, 5 years

420 × 0.035 × 5 = 73.50

73.50 + 420 = 493.5

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Mrs. Beach bought shells at a gift shop. The red shells (r) were $0.75 each, and the white shells (w) were $0.49 each. The total cost was $4.70 for 8 shells. Later, the clerk forgot how many of each color shell he sold, so he guessed 4 red and 4 white shells. That was 8 shells, but the cost was $4.96. What advice would you give the clerk for his next guess?
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Determine the time needed to deliver 72 papers at rate of 9 papers in 18 minutes.

Answers

Answer: The required time needed to deliver 72 papers is 2 hours 24 minutes.

Step-by-step explanation: Given that 9 papers are delivered in 18 minutes.

We are to determine the time needed to deliver 72 papers.

We will be using the UNITARY method to solve the problem.

We have

Time needed to deliver 9 papers = 18 minutes.

So, time needed to deliver 1 minute will be

$(18)/(9)=2~\textup{minutes}.$

Therefore, time needed to deliver 72 papers is given by

$2*72=144~\textup{minutes}=(120)/(60)~\textup{hours},24~\textup{minutes}=2~\textup{hours}~24~\textup{minutes}.$

Thus, the required time needed to deliver 72 papers is 2 hours 24 minutes.

So you need to find out time. What you do is divide 72 by 9 to get 8. Once you get 8, you have to multiply it by 18. Your answer is then 144 Papers

Why it is not reasonable to say that 4.23 is less than 4.135

Answers

It is not reasonable to say that 4.23 is less than 4.135,
because 4.23 is more than 4.135.

Because if you think without the decimal points then see which one is greater.

hope this helps

Explain how to solve 643 = 4x160 +n

Answers

first you will have to multiply 4 and 160 which will be 640
then write 640 in the place of 4x160 so you should have 643=640+n
you then will subtract 640 with 640 and they should console out
then subtract 643 with 640 you should get 3
so your answer should be 3=n

Omg really? Im in Middle School and i never saw anythin like this in Elementary School?????

What is 12 cats to 15 dogs simplest form

Answers

Answer:

4 cats : 5 dogs is your answer

Step-by-step explanation:

Divide common factors from both ratios. Find the factors:

12: 1, 2, 3, 4, 6

15: 1, 3, 5, 15

The greatest common factor is 3 (as they are factors for both). Divide 3 from both numbers:

12:15

(12)/3 : (15)/3

4:5

4 cats : 5 dogs is your answer

For a game, three people are chosen in the first round. Each of those three people chooses 3 people in the second round. How many are chosen the sixth round.

Answers

Answer:

Number of people chosen in the sixth round is 729

Step-by-step explanation:

Given : For a game - 3 people are chosen in first round then each of three chooses 3 people in the second round ans so on.

To find : How many are chosen the sixth round.

Solution : We know,

In first round 3 people choose ⇒no. of people =3

In second round 3 people individually choose 3 people ⇒no. of people = 9

since the number of people chosen with a constant amount forming a geometric series

Geometric series - A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed also called as common ratio.

General form: $a,ar,ar^2,ar^3......$