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klemol [59]
3 years ago
12

The total cost of four pens and seven mechanical pencils is $12.27. The cost of each pencil is 25 cents a. Using an arithmetic a

pproach, find the cost of the pen
Mathematics
2 answers:
mariarad [96]3 years ago
8 0

Answer:

x=2.63

good luck



vlada-n [284]3 years ago
6 0
Let the cost of a pen be $x.
4x + 7(0.25) = 12.27
4x = 10.52 \\ x = 2.63
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2 years ago
Suppose that you ask three friends to go to the mall. each one has a 0.80 chance of saying yes. what is the probability that all
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3 years ago
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I need help I don't understand this.
AleksAgata [21]

Answer:

64°

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<img src="https://tex.z-dn.net/?f=9x%20%7B%7D%5E%7B2%7D%20y%20%7B%7D%5E%7B3%7D%20z%20%7B%7D%5E%7B5%7D%20%20%5Cdiv%206x%20%7B%7D%
dexar [7]

Answer:

3y²z³ / 2x

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we can take one term at a time:

9/6 can be simplified to 3/2

x²÷x³ = x^-1 which equals \frac{1}{x}

y³÷y = y²

z⁵÷z² = z³

put it all together:

3·\frac{1}{x}·y²·z³ / 2  or

3y²z³ / 2x

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3 years ago
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