MATHEMATICS HIGH SCHOOL

$800 deposited at 9% for 9 months, what is the simple interest and total amount?

Answers

Answer 1
Answer: 9% of 800 is 72 and nine month would be $648. The total amount would be 1448.
Answer 2
Answer: ok so the formula to find simple interest over the amount of years is A=P(1+r times t ) so lets plug it in 800(1+(.0009 times 9))is equal to $806.48 cents per year for 9 years hoped this helped!!

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What is the seventh term of the sequence whose nth term is (n + 1)(n − 2)?A.) 28

B.)35

C.) 36

D.) 40

Answers

To do this, you simply substitute 7 into the equation. 

[(7) + 1][(7) − 2]
BODMAS tell us that we should do the sum in the brackets before anything else. 
(8)(5)
8 X 5 = 40

The seventh term is 40. The answer is D)

Courtney reads around 110 words per minute. She procrastinated and now has less than a week to finish her reading assignment. If the book she needs to finish has another 820 pages left and each page has around 350 words, how many hours should she set aside to complete her assignment? Show your work to receive full credit. (10 points)

Answers

First we figure out how many words in total she has to read.
This would be the (number of pages) times (number of words per page).

820 * 350 = 287000
so she has to read 287000 words

we divide this by 110 to get how long it would take for her to finish (in minutes)
287000 / 110 = 2609.09090909....

then since there are 60 minutes in an hour, we divide that number by 60
2609.09090909... / 60 = 43.48484848...

Therefore it would take her about 43.5 hours to complete her assignment.

Answer:

43.5 hours

Step-by-step explanation:

Courtney needs to set aside at least 43.5 hours. We need to figure out many words she needs to read in total.So we need to do 820 * 350287000.We then need to divide by 110 so we can the time in minutes. 2609.09090909....Then we divide the number 60 since the question is asking us for hours. Therefore it would take her about 43.5 hours to complete her assignment

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?8x2 + 34; 43.6 centimeters
8x2 + 34; 45.52 centimeters
4x2 + 17; 21.8 centimeters
4x2 + 17; 22.76 centimeters

Answers

Substituting the value of X in each of the equations.The best answer would be the equation satisfying both of the sides.
Therefore,
Substituting the values in the second equation gives the best answer.
8(1.2)^2 + 34 = 45.52 centimeters

The correct answer is the second option.

B) 8x2 + 34; 45.52 centimeters

Work out the value of 3c-4d when c=5 and d= ½

Answers

3(5) - 4(1/2)
15 - 2 = 13

Jesse collected 42 football cards and 28 basketball cards simpfly the ratio of baseball cards to football cards in his collection

Answers

The ratio of basketball card to football cards is 2 : 3.

What is the ratio?

A ratio indicates how many times one number contains another. If a and b are to objects then ratio of a to the b is given as a : b.

Now it is given that,

Number of football cards = 42

Number of basketball cards = 28

Hence,

Ratio of basketball cards to football cards = Number of basketball cards/Number of football cards

⇒Ratio of basketball cards to football cards = 28/42

⇒Ratio of basketball cards to football cards = 2/3

⇒Ratio of basketball cards to football cards = 2:3

Therefore,The ratio of basketball card to football cards is 2 : 3.

To learn more about ratio :

brainly.com/question/1504221

#SPJ2
Baseball cards : Football cards = 28 : 42

28 : 42

7 into 28 is 4 and 7 into 42 is 6

 28 : 42 = 4 : 6        

2 into 4 is 2 and 2 into 6 is 3

 28 : 42 = 4 : 6 = 2 : 3

So the simplified ratio of baseball cards to football cards is 2 : 3.

I  hope this helps.   

3/10 minus what equals 2/5?

Answers

7/10-3/10=2/5
3/10+1/10=2/5
3/10-x=2/5
3-10x=4
-10x=1
x=-1/10
So it is -1/10
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