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likoan [24]
2 years ago
13

Romano pays 312.50 for a television set. The markup price of the television set is 25%. What equation could you use to find the

amount of money that the store paid for the television set
Mathematics
2 answers:
NARA [144]2 years ago
6 0

Answer:

78.125

Step-by-step explanation:

If 312.50 is 100% then 25% is 78.125

Please mark brainiest if correct!!!!!!!!!

Romashka-Z-Leto [24]2 years ago
4 0

Answer:

1.25D = $312.50

Where D is the amount of money that the store paid for the television set.

Step-by-step explanation:

The mark up is the percentage of the cost of an item added to the cost of the item to get the selling price. When the percentage is applied on the cost, the result is the markup amount which is the profit of the selling entity.

As such, if the cost or the amount of money that the store paid for the television set is D, the mark up amount

= 25% * D

= 0.25D

The selling price of the television set will then be

= 0.25D + D

= 1.25D

Since Romano pays 312.50 for a television set, then it means that

1.25D = $312.50

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Mila [183]

Answer:

(x,y) = (5.8,-0.4)

Step-by-step explanation:

1.)  x + 2y = 4.2 - 2y = 5

2.) { x + 2y =5

    { 4.2 - 2y = 5

3.) { x + 2y = 5

    { y = -0.4

4.) x + 2x ( -4.0 ) = 5

5.) x= 5.8 ( a possible solution )

6.) ( x , y ) = ( 5.8 , -0.4 )  check to the solution

7.)  5.8 + 2 x ( -0.4 ) = 4.2 - 2 x ( -0.4 ) = 5

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3 0
2 years ago
Read 2 more answers
Eric took $7000 of his income last year and invested it, part at 7% and the rest at 9%. He earned $570 from investments. How muc
mihalych1998 [28]

Answer:

He invested 3,000 at 7% and 4,000 at 9%.

Step-by-step explanation:

From the information given, you can write the following equations:

x+y=7,000 (1)

0.07x+0.09y=570 (2)

You can solve for x in (1)

x=7,000-y (3)

Now, you can replace (3) in (1) and solve for "y":

0.07(7,000-y)+0.09y=570

490-0.07y+0.09y=570

0.02y=80

y=80/0.02

y=4,000

Finally, you can replace the value of "y" in (3):

x=7,000-4,000

x=3,000

According to this, the answer is that he invested 3,000 at 7% and 4,000 at 9%.

5 0
1 year ago
a shopkeeper sold goods for rs 2400 and made a profit of 25% in the process. find his profit per cent if he had sold his goods f
miv72 [106K]

case 1,

Let the CP be ₹x,

SP = ₹2400

Profit = SP – CP

= 2400 – x

Profit % = {(2400–x)/ x} × 100%

According to the question,

{(2400–x)/ x} × 100 = 25

=> (2400–x)/ x= 25 /100

=> 100(2400–x) = 25x [ cross multiplication]

=> 240000 – 100x = 25x

=> 240000 = 25x + 100x

=> 240000 = 125x

=> 240000/125 = x

=> x = 1920

So, CP = ₹1920

case 2,

SP = ₹2040

Profit = SP – CP

= 2040 – 1920

= ₹120

profit % = 120/1920 × 100%

= 16%

<h3>Thus, his profit would be 16% if he had sold his goods for ₹2040.</h3>
6 0
1 year ago
Eliza started her savings account with $100. Each month she deposits $25 into her account. Determine the average rate of change
Afina-wow [57]
First, lets create a equation for our situation. Let x be the months. We know four our problem that <span>Eliza started her savings account with $100, and each month she deposits $25 into her account. We can use that information to create a model as follows:
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<span>
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\frac{200}{8}
25

We can conclude that <span>the average rate of change in Eliza's account from the 2nd month to the 10th month is $25.</span>
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