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Olegator [25]
3 years ago
6

Dana has $25, she went to the store and spent $10. She then received $50 for a birthday present. Dana was excited until she real

ized she needed new tires. The tires cost $75.
Tracey has $50. She had to get gas for her car which was $25. She returned a TV to Wal-Mart and received $100. Tracey purchased a new pair of boots for $150?

In the table, figure out how much money that each person has or owes after their purchases.
Summary of Dana’s Money
Summary of Tracey’s Money
Who ends up with the least amount of money after their purchases?
Mathematics
2 answers:
MissTica3 years ago
8 0

Dana:

Starts with 25 = 25

Spends 10 = 25 - 10 = 15

Received 50 = 15 + 50 = 65

New tires cost 75 = 65 - 75 = -10

Tracey:

Starts with 50 = 50

Gets gas for 25 = 50 - 25 = 25

Received 100 = 25 + 125 = 125

Purchased boots for 150 = 125 - 150 = -25

Tracey ends up with the least amount of money after their purchases.

Hope this helps! :)

Dennis_Churaev [7]3 years ago
3 0

Answer:

Tracey (-$25)

Step-by-step explanation:

Dana=(25-10)+50-75= -10

Tracey=(50-25)+100-150= -25

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StepByStep Solution:

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Step-by-step explanation:

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I^2 = P/R

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3 years ago
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a manufacturer has determined that if his company sells x items per day then their profit is given by P=-x^2+ 700 x-10000 euros.
Radda [10]

Answer:

15

Step-by-step explanation:

To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula

x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}; x=  \frac{-b-\sqrt{b^{2}-4ac } }{2a}

x= \frac{-700+\sqrt{700^{2}-4(a)(-10000) } }{2(1)}; x= \frac{-700-\sqrt{700^{2}-4(a)(-10000) } }{2(1)}

x= \frac{-700+\sqrt{530000} }{2}; x= \frac{-700-\sqrt{530000} }{2}

x=\frac{-700+100\sqrt{53} }{2}; x=\frac{-700-100\sqrt{53} }{2};

x=-350 + 50\sqrt53 = 14.005; x = -350 - 50\sqrt53 = -714.005

In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.

(-714.005)^2+700(-714.005)-10000=-0.360

Furthermore, we must round to the nearest whole number, as you cannot make part of an item.

Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit:

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3 0
2 years ago
Tom, Sam and Matt are counting drum beats.
umka2103 [35]

Answer: 40\ beats

Step-by-step explanation:

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You can follow these steps:

1- You must descompose 2, 5 and 8 into their prime factors:

2=2\\5=5\\8=2*2*2=2^3

2- And finally, you must multiply the commons and non commons with the highest exponent:

L.C.M=2^3*5=40

Therefore, the answer is: 40\ beats

4 0
3 years ago
Given the function f(x) = 0.65x + 117, what<br> s the x-value of the zero?
swat32

Answer:

x = -180

Step-by-step explanation:

0 = 0.65x + 117

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cross-multiply to solve for 'x':

65x = -11700

x = -11700/65

x = -180

8 0
2 years ago
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