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bagirrra123 [75]
3 years ago
10

1. Which of the following is the sale price for an item with an original price of $8.95 after it has been discounted 40%?

Mathematics
1 answer:
dsp733 years ago
8 0
Hey there!

1, 8.95*.4= 3.58 was take off.  8.95-3.58= 5.37
$5.37

2.<span>A change from 85 to 72 represents a negative change (decrease) of -15.294117647058824%</span>
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The Rickerts decided to set up an account for their daughter to pay for her college education. The day their daughter was born,
KiRa [710]

Answer:

The answer is 2) an = 1000(1.018)n + 750n

Step-by-step explanation:

The day their daughter was born, they deposited $1000 in an account that pays 1.8% compounded annually. This means thaht they have an interest of 1.8% of what they deposited each year.  

To know how much interest is in a year, you must first know that 1.8% is the same as 0.018. This is obtained by dividing by 100, that is, you convert from percentage to decimal.

On the other side, what they deposited represents 100%. To convert it to decimal, it must be divided by 100, and it results in 1.

So, you want to know the total amount of money you have after a year, that is, what The Rickerts deposited added interest.

So, all this is represented as follows:

  • 1000*100%(what The Rickerts deposited)+1000*1.8%(interest)

Converting the percentage to decimals:

  • 1000*1+1000*0.018

So, to solve this, a common factor of 1000 will be taken::

  • 1000(1+0.018)
  • 1000*1.018

But with this calculation you get interest after a year. You want to know the amount of money in the account n years after their daughter was born.  For that you must multiply by the number of years of your daughter and you get: <u><em>1000*1.018*n</em></u>

On the other hand,The Rickerts deposit an additional $750 into the account on each of her birthdays. On the first birthday, they deposit 750, on the second birthday 750, and so continuously every birthday. So, to know the amount they deposit on the nth birthday, multiply 750 by n: <u><em>750*n</em></u>

Now, knowing finally both expressions, it is possible to know the total amount of money in the account n years after their daughter was born adding both expressions:

<u><em>an=1000*1.018*n+750*n</em></u>

8 0
3 years ago
Read 2 more answers
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Simora [160]
The correct answer is trade off.
6 0
3 years ago
1/2 x 1/4 answer then write in simplest form
Afina-wow [57]

Answer:

1/8

The drawing will help

4 0
3 years ago
Anybody know how to do this ?
pogonyaev

Hey there!

The interior angles of a triangle equal 180.

We can use this and the measures of the angles we are given to find the missing interior angle.

50+93=143

180-143=37

Since the missing angle (37) and angle x are supplementary, they add up to 180 as well.

37 + x = 180

180 - 37 = 143

x = 143

Hope this helps!

7 0
3 years ago
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Quarter x plus eighteen equals x
Jet001 [13]
Lets write as an equation:
x/4 + 18 = x
to get rid of fraction lets multiply the whole equation by 4:
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x + 72 = 4x
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that is the solution
3 0
3 years ago
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