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3 years ago

A student read 3/4 of a book containing 380 pages. How many pages remain to be read?

Mathematics

1 answer:

Paul [167]3 years ago

7 0

Answer:

95 pages remain to be read.

Step-by-step explanation:

3/4(380)=285

380-285=95

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The cost of a pair of jeans is 4 times the cost of a book

galben [10]

Answer:

what's the cost of the books then

Step-by-step explanation:

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3 years ago

Papa john is 50 years old. His age is 2 years more than 3 times the age of jimmy John

kakasveta [241]

Jimmy John is sixteen

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3 years ago

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[50 points!]

marshall27 [118]

Answer:

1/3

Explanation:

P(Freshman | Boy)

Freshman = 4

Boy = 12

⇒ Probability = Number of favorable outcomes ÷ Total number of possible outcomes

P(Freshman | Boy) = freshman/total boys

P(Freshman | Boy) = 4/12

P(Freshman | Boy) = 1/3

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2 years ago

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Solve for the angle x.

sergejj [24]

Answer:

x=45

Step-by-step explanation:

An entire triangle is 180 degrees and you already know that one angle is 90 degrees. 180 - 90 is 90. Now you have the equation 2x=90.

You then divide each side by 2 to get the x by itself which leaves you with x=45.

8 0

2 years ago

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The histogram shows the speeds of downhill skiers during a competition. Estimate the mean of the data set displayed in the histo

Ostrovityanka [42]

Answer:

≈50.6

Step-by-step explanation:

Not sure what precision level this problem is looking for, but for right-skewed distributions, we know that the mean is going to be pulled right and therefore the mean should be larger than the median. To a high confidence level, the mean should fall between 50 and 59, or in the third column.

If a single estimation is wanted, assume the values inside each column are uniformly distributed:

$\displaystyle\\\widehat{\mu}=\frac{34.5\cdot 4+...+74.5\cdot 2}{4+9+4+4+2}\approx \boxed{50.6}$

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2 years ago