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Natali5045456 [20]
3 years ago
13

Subtract the following numbers. 219.8 - 197

Mathematics
2 answers:
Dennis_Churaev [7]3 years ago
4 0

219.8 - 197

line up the decimals

219.8

-197.0

----------

 22.8

MissTica3 years ago
3 0
That's 22.8

219.8 - 197 = 22.8
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45% of the student body at a local high school work part-time. 80% of the students who do not part-time love math whereas only 6
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Answer:

71%

Step-by-step explanation:

I think the easiest way to think of this is to pretend that there are a total of 100 students at the high school, so that means the amount of people who work part time is 45% of 100 = 45 people. If 60% of those students love math, you do 0.6 * 45 = 27 people.

Next, 80% of the students who do not have a part time job (100 - 45 = 55) love math, so 0.8 * 55 = 44 people.

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let me know if any part of that doesn't make sense

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3 years ago
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3 years ago
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28,


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4 0
4 years ago
Carmen is a professor at a local university. In collecting data on her Introduction to Business course for a year, she wants to
AVprozaik [17]

Answer:

\boxed {\boxed {\sf z=2.2}}

Step-by-step explanation:

The z-score tells us how many standard deviations a value is away from the mean.

The formula is:

z=\frac{x- \overline{x}}{s}

where x is the value, \overline {x} is the mean, and s is the standard deviation.

We want to find the z-score for the score of an 83, the mean is 72, and the standard deviation is 5.

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Substitute the values into the formula.

z=\frac{83-72}{5}

Solve the numerator.

z=\frac{11}{5}

Divide.

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The z-score is 2.2, which means the score of 83 is 2.2 standard deviations above the mean.

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3 years ago
A loaf of bread is 1 1/2 feet long. How many 3 inch pieces can be cut from the loaf?
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1 1/2 feet= 18 inches
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6 0
3 years ago
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