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makkiz [27]
3 years ago
14

Mark, Chase, and Beatrice are running a 100-meter race. Which list represents the sample space of all the possible ways in which

the three runners can win first, second, and third places? If there were four runners and three positions to be won, what would the sample size be?
A.

The sample space is {MBC, BCM, CMB}. If there were four runners, the sample size would be 4.

B.

The sample space is {MBC, MCB, BCM, BMC, CBM, CMB}. If there were four runners, the sample size would be 24.

C.

The sample space is {MBC, BCM, CMB}. If there were four runners, the sample size would be 4.

D.

The sample space is {MBC, MCB, BCM, BMC, CBM, CMB}. If there were four runners, the sample size would be 16.
Mathematics
2 answers:
Scilla [17]3 years ago
9 0
I think the answer is B but I could be wrong
aliya0001 [1]3 years ago
7 0

Answer:i think the answer is a

Step-by-step explanation:

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Tiwa spent 1 1/2 hours setting up her computer. It took her 3 times as long to install the software. How long did it take Tiwa t
MrRissso [65]

Answer:

Total time spent by Tiwa to set up the computer and install software = 6 hours

Step-by-step explanation:

Given:

Time spent by Tiwa to set up  her computer = 1\frac{1}{2}\ hours

Time spent to install the software is 3 times the time she took to set up the computer.

To find the total time Tiwa took to set up her computer and install the software.

Solution:

Time spent by Tiwa to install the software can be given as:

⇒ 3\times 1\frac{1}{2} \ hours

<em>In order to multiply mixed numbers we first change them to fractions.</em>

We multiply the denominator to the whole number and add the numerator to it. Then we write the number as numerator of a fraction with the same denominator.

So, 1\frac{1}{2}=\frac{3}{2}

So, we have:

⇒ 3\times \frac{3}{2}\ hours

⇒ \frac{9}{2}\ hours

Total time spent by Tiwa to set up the computer and install software can be given as:

⇒ \frac{3}{2}\ hours+\frac{9}{2}\ hours

Since denominators are same, so we simply add the numerators.

⇒ \frac{3+9}{2}\ hours

⇒ \frac{12}{2}\ hours

⇒ 6\ hours

4 0
3 years ago
A company made a profit of $75,000 over a period of 6 years on an initial investment of $15,000. What is its annaualized ROI?
alekssr [168]
Annual profit=75,000÷6=12,500


ROI=12,500÷15,000=0.8333×100
=83.33%
5 0
3 years ago
48 girls, 41 boys, and 5 teachers sat in the gym. Write the ratio of girls to boys in three ways.
Anika [276]

Answer:

D

Step-by-step explanation:

The answer is D because the question is asking for girls to boys. So anything that has 5 in it is wrong because it isn't asking for teachers, which eliminates A. So since it is asking <u>girls</u><u> </u><u>to</u><u> </u><u>boys</u> the number order has to be 48 then 41 because it is asking for girls first then to boys. So that makes B wrong. When it comes to the fraction part of the ratio the first number it is asking for (which is girls) <em><u>alwa</u><u>ys</u></em> goes on top. So that eliminates C which leaves only answer to be D.

7 0
3 years ago
I don’t know how to do that
julia-pushkina [17]
Number 3 is D, number 4 is B, number 5 is B
8 0
3 years ago
Solve 1 over 36 = 6x−3.<br><br> x = −5<br> x = negative 3 over 2<br> x = 7 over 2<br> x = 1
vlabodo [156]
6*(-5)-3 = -33
6*(-3/2)-3 = -12
6*(7/2)-3 = 18
6*(1)-3=3
3 0
3 years ago
Read 2 more answers
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