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jasenka [17]
3 years ago
13

PLS HELP!! There are 8 lifesavers in a roll and 3 of them are red. What is the probability of opening the roll and the 1st lifes

aver is red? Write as a percent. (Only one end of the roll can be opened)
Mathematics
2 answers:
worty [1.4K]3 years ago
4 0

ANSWER:

Total no. of lifesavers = 8

Red lifesavers = 3

So, Probability of getting red lifesaver are

  • 3/8 or 37.5%

Sati [7]3 years ago
3 0

Answer:

37.5 percent (3/8)

Step-by-step explanation:

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Convert the following ratio into percentage 3:5​
konstantin123 [22]

Answer:

Answer is 60%

Step-by-step explanation:

I hope it's helpful!

6 0
3 years ago
An 8-sided die is formed when two square pyramids are attached by their bases. The perimeter of the base shape is 6 centimeters.
lawyer [7]

Answer:

7.5cm²

Complete question:What is the surface area of the 8-sided figure?

Step-by-step explanation:

Consider the half of the 8-sided die i.e the pyramid ABCDE:

As the base is 6 of the perimeter, so each side of the base is 6/4=3/2

Now, the distance between the tallest points is 2 cm, so the height of Pyramid ABCDE is 1 cm.

Considering the right triangle EOM:

EO=1, OM= 3/4 (it is half of AB=3/2) and EM is the hypothenuse, so by the pythagorean theorem length of EM is 

\sqrt{1+ ( \frac{3}{4} )^{2} }=  \sqrt{1+ \frac{9}{16} }= \sqrt{ \frac{25}{16} }= \frac{5}{4}   (cm)

5. So side EBC has area  

\frac{1}{2}BC*EM=  \frac{1}{2}* \frac{3}{2}* \frac{5}{4}= \frac{15}{16}

6. The total area is 8*Area(EBC)=8* \frac{15}{16}= \frac{15}{2}=7.5 ( cm^{2} )

3 0
3 years ago
If there are 14418 students at rocky valley college and
Digiron [165]

The total number of students take speech at rocky valley college is 4806

Average means the "central" value of a set of numbers. To calculate it: add up all the numbers, then divide by how many numbers there are.

Given

Number of students in the rocky valley college = 14418

Student who take speech = 1/3

So, the total number of students who took part in speech is

=> 14418 x 1/3

=> 14418/3

=> 4806

To know more about Average here

brainly.com/question/2906096

#SPJ4

8 0
2 years ago
Simplifying Fractions<br><br> 10/45 simplified? Thanks!<br> Also, 20 points c;
vichka [17]
10/45 simplified is 2/9. Since both numbers are divisible by 5. Hope i helped you today!
 
10  ÷5  2
----      ----
45  ÷5  9                                                                                                                                                   
8 0
3 years ago
Read 2 more answers
Can someone please help me with this question
suter [353]

Answer:

y=6x

Step-by-step explanation:

the graph I made in desmos

7 0
3 years ago
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