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Rashid [163]
3 years ago
15

HElp me please. You will get points.

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

the mean is 12.5

Step-by-step explanation:

DedPeter [7]3 years ago
8 0
52.8 minutes

Since it’s an estimate choose a midpoint of each category to represent its time value
15 min for 0-30 min group
45 min for 30-60
75 min for 60-90
105 min for 90-120

Then multiply the time for each group by the number of students and add together

15x7+45x27+75x12+105x4 = 2640 minutes
Then divide by the total number of students 50

2640/50=52.8 minutes
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The composite numbers smaller than 18​
Alex

Hello.

A composite number has more than 2 factors; it's divisible by 1, itself, and something else.

Let's find the composite numbers smaller than 18.

The composite numbers are

4, 6, 8, 9, 10, 12, 14, 15, 16.

I hope it helps.

Have a nice day.

\boxed{imperturbability}

8 0
3 years ago
There are 36 pencils in 6 packs. Igor wants to know how many pencils are in 1 pack. Elsa wants to know how many pencils are in 3
disa [49]

Answer:

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5 0
4 years ago
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Solve!!!!!!!!!!!! Please
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Begin by multiplying everything by 3 to get rid of the fraction. That gives us -2n \leq 48.  The rule is when you divide by a negative, the direction of the sign changes, so we will end up with n \geq -24.  Because there is a line under the inequality sign, the circle is closed.  So your choices are the second, fourth, and sixth.
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3 years ago
Find the simple interest Mark owes on a four-year student loan of $36,000 with an annual interest rate of 6%.
Nimfa-mama [501]
I = PRT
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8 0
3 years ago
Three-fifths of the students in a room are girls. One-third of the girls have blond hair. One-half of the boys have brown hair.
yan [13]

Answer:

a. Of all the students, \frac{1}{5} are girls with blond hair.

b. Of all the students, \frac{1}{5} are boys without brown hair.

Step-by-step explanation:

a. You know that \frac{3}{5} of the students are girls (This means that \frac{2}{5} of the studes are boys) and \frac{1}{3} of these girls have blond hair.

Then, \frac{1}{3} of \frac{3}{5} is:

(\frac{3}{5})(\frac{1}{3})=\frac{1}{5}

Therefore, of all the students, \frac{1}{5} are girls with blond hair.

b. You know that \frac{1}{2} of the boys have brown hair.

Then, \frac{1}{2} of \frac{2}{5} is:

(\frac{2}{5})(\frac{1}{2})=\frac{1}{5}

Of all the students, \frac{1}{5} are boys without brown hair.

8 0
3 years ago
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