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3 years ago

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Problem Page Maya purchased a prepaid phone card for $30 . Long distance calls cost 18 cents a minute using this card. Maya used

her card only once to make a long distance call. If the remaining credit on her card is $26.94 , how many minutes did her call last?

1 answer:

Helen [10]3 years ago

8 0

Her call lasted 17minutes

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the kline family went on vacation last year and paid $199 a night for the hotel room. This year, the price has increased by 5% .

dangina [55]

Answer: $208.95

Step-by-step explanation: $199 x .05= 9.95 + $199= $208.95

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3 years ago

Kelly went to a store to purchase a coffee pot. She will use a coupon for 20% off. She can calculate the cost before sales tax u

alexgriva [62]

Answer:b

Step-by-step explanation:

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3 years ago

5(3m+2)<br> 6(g+h)<br> 4d+8<br> 21p+35q<br> 18x+9y

aalyn [17]

<span>(a) 5(3m+2) = 15m + 10

(b) 6(g+h) = 6g + 6h

(c) 4d+8 = 4(d + 2)

(d) 21p+35q = 7(3p + 5q)

(e) 18x+9y = 9(2x + y)</span>

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3 years ago

I need help pls with this

mr Goodwill [35]

When you are solving an algebraic one-step equation, the goal is to isolate the variable on one side of the equal sign, two-step equations are the same, but with one more step (hence the name)

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3 years ago

66 randomly selected students were asked the number of pairs of shoes they have. Let X representthe number of pairs of shoes. Th

laiz [17]

Given data

1. The mean

$\frac{\sum fx}{\sum f}=\frac{505}{66}=7.6515$

2. The median

$\begin{gathered} \text{ Median = (}\frac{\text{N+1}}{2})th \\ =(\frac{66+1}{2})th=(\frac{67}{2})th=33.5th \\ \text{The median is the 33.5th }term\text{ which is between 7 and 8} \\ \text{The median is }\frac{\text{7+8}}{2}=\frac{15}{2}=7.5 \end{gathered}$

3. The sample standard deviation

$\begin{gathered} SD\text{ =}\sqrt[]{\frac{\sum f|x-\bar{x}|}{\sum f}} \\ \bar{x}=7.6515 \\ SD=\sqrt[]{4.8028} \\ SD=2.1915 \end{gathered}$

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1 year ago