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goldfiish [28.3K]
3 years ago
15

In recent year a letter to Europe from the United States cost $0.94 to mail. A letter mailed within United States cost $0.44. Na

ncy mailed 5 letters for $3.70 some to Europe and some to the United States. how many letters did she send to Europe
Mathematics
1 answer:
Bogdan [553]3 years ago
5 0
3 letters to US = 3*0.94 = 2.82
2 local letters = 2*0.44 =  0.88 
checking: 2.82+0.88 = 3.70

to get rid out of 0.04 cents you have to multiply it by 5. so total number of letters would be 5.
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How are the values of -4^3 and 4^-3 alike and how do they differ?
BartSMP [9]

Answer:

(-4)³ = -64

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Step-by-step explanation:

( - 4) {}^{3}  =  ( - 4) \times ( - 4) \times ( - 4) =  - 64 \\

{4}^{ - 3}  =  (\frac{1}{4} ) {}^{3}  \\

({ \frac{1}{4} )}^{3}  =  \frac{1}{4}  \times  \frac{1}{4}  \times  \frac{1}{4}  =  \frac{1}{64}  \\

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2 years ago
Find the slope of the line (2, 4), (0, 2) and (0, 0), (3, 18)
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Answer:

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second one there isn't a slope.

Step-by-step explanation:

( x 1 - y 1 )

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2 years ago
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(1, 3)

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3 years ago
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MatroZZZ [7]
For the answer to the question, what is the slope AB if l<span>ine AB contains points A(4, 5) and B(9, 7)?
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I hope my answer helped you. Feel free to ask more questions. Have a nice day!
4 0
3 years ago
Read 2 more answers
X
tresset_1 [31]

Step-by-step explanation:

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3 0
2 years ago
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