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velikii [3]
3 years ago
14

jenny purchased a prepaid phone card for $30 . long distance calls cost 24 cents a minute using this card. jenny used her card o

nly once to make a long distance call. if the remaining credit on her card is $20.16 , how many minutes did her call last
Mathematics
2 answers:
expeople1 [14]3 years ago
8 0
It would be 29 minutes on the dot
astraxan [27]3 years ago
7 0
30 ( total card) - 20.16 (remaining credit)
30 - 20.16 = 9.84
9.84 divided by .24 (cents a minute)
9.84 / .24 =
41
Jenny's call lasted 41 minutes.
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Maslowich
Answer: Choice D) |K| = 57

------------------------------------------------------

Explanation:

The notation |K| means "the number of items in set K". It is similar to the notation n(K). In this case, we simply add up all the values in the circle labeled K. There are four of these values which are 13, 8, 17, 19. Add up these values to get 13+8+17+19 = 57. So there are 57 items in set K.
4 0
3 years ago
Which expression is equivalent to<br> on is equivalent to 9x^5y^16/45x^5y^4?
kicyunya [14]

Answer:

\frac{y^{12} }{5}

Step-by-step explanation:

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6 0
3 years ago
A 9-yard roll of string costs $3.42. What is the unit price?
Karolina [17]

<em>Answer:</em>

<em>$0.38 per yard</em>

<em>Step-by-step explanation:</em>

<em>Step 1:</em>

Given; A 9-yard roll of string that costs $3.42.

Required; To find the unit price

<em>  Step 2:</em>

Convert $3.42 to cents

1 ~dollar=100~cents ~\\therefore,\\$3.42=3.42~x~100=342~cents~

<em>Step 3:</em>

<em>Find the unit price</em>

\frac{9 yard}{1 yard} =\frac{342 ~cents}{x~cents}

9x=342

\frac{9x}{9} =\frac{342}{9}

x=38~cents

<em>Convert to dollars</em>

x=\frac{38}{100}

x=0.38~per~yard

Hence the unit price is $0.38 per yard.

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2 years ago
Someone help me wiht this geomtry problem asap!!!
Sholpan [36]

Answer:

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Step-by-step explanation:

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