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4 years ago

11

A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed on red side up 22 times. Wha

t is the relative frequency of the chip landing with the red side facing up?
36%

44%

52%

56%

1 answer:

Ede4ka [16]4 years ago

3 0

Answer:

42%

Step-by-step explanation:

You have essentially A fraction, 21/50, which gives you a decimal of 0.4 the 2, or 42%

You might be interested in

A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches.

Svetllana [295]

Answer:

The perimeter of the plaque is 28 inches.

Step-by-step explanation:

Given : A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches. The perpendicular distance from a side to the center is 5 inches to the nearest inch.

To find : What is the perimeter of the plaque?

Solution :

The 7-sided polygon can be divided into seven triangles whose height, h is equal to the perpendicular distance from each side to the center.

The base of each triangle is equal to the length of a side, s.

The area of each triangle is $A=\frac{1}{2}\times s\times h$

The area of the whole polygon is $A_p=\frac{1}{2}\times 7s\times h$

Now, the perimeter of a regular 7-sided polygon is $P=7s$ .

Substitute in area,

$A_p=\frac{1}{2}\times P\times h$

We have given, $A_p=70\ in^2 and h=5\ in$

$70=\frac{1}{2}\times P\times 5$

$P=\frac{70\times 2}{5}$

$P=28$

The perimeter of the plaque is 28 inches.

3 0

4 years ago

Sonbull [250]

Answer: 168 kilometers

Lakewood
| \
| \
|72\
| \
|_21_\
O’s home. Wildgrove

Wild grove to lakewood:
21^2 + 72^2 = x^2
441 + 5184 = x^2
5625 = x^2
75 = x

Home to Lakewood: 72
Lakewood to wildgrove: 75
Wildgrove to home: 21

72+75+21= 168 kilometers

3 0

3 years ago

How far does judy travel in 2 3/4 hours if she travels at the rate of 5 1/2 miles per hour

Roman55 [17]

Judy travel's 15.125 miles or 15 $\frac{1}{8}$ miles in 2 3/4 hours

How to solve such time related questions?

The key concept for solving such questions is the relationship between speed, distance and time.

The relationship between them is Distance = Speed x Time

Given:

Speed = 5 1/2 miles per hour
Time = 2 3/4 hours

Substituting it in the relationship we get,

Distance = Speed x Time

Distance = 5 1/2 miles per hour x 2 3/4 hours

Distance = $\frac{11}{2} X \frac{11}{4}$ miles

Distance = $\frac{121}{8}$ miles or 15 $\frac{1}{8}$ miles

Thus Judy travel's 15.125 miles or 15 $\frac{1}{8}$ miles in 2 3/4 hours

Learn more about time related questions here :

brainly.com/question/16403317

#SPJ4

6 0

2 years ago

The class has n students, and n is an even number. The students are forming teams to work on their homework. Each team has exact

yuradex [85]

Answer:

Distinct ways in which they all can form the teams for the class = n(n-1)

Step-by-step explanation:

Total numbers of students = n (even number)

Number of student in each team = 2

Number of distinct ways are there to form the teams for the class:

$P^{n}_{k}=\frac{n!}{(n-k)!}$

where = n = number of elements = n

k = number of elements choose = 2

$P^{n}_{2}=\frac{n!}{(n-2)!}=\frac{n\times (n-1)\times (n-2)!}{(n-2)!}$

$=n\times (n-1)$

8 0

3 years ago

A store has shirts on display. Seven of the shirts are red. There are 5 more blue shirts than green shirts. There are 2 fewer ye

mixas84 [53]

Answer:

7 red shirts

6 green shirts

11 blue shirts

4 yellow shirts

Step-by-step explanation:

Let y represent the number of green shirts.

So y+5 is the number of blue shirts.

And y-2 is the number of yellow shirts.

And we have 5 red shirts.

Therefore,

7+5+y+y-2+y=28

12-2+3y=28

10+3y=28

3y=28-10

3y=18,divde through by 3

y=6

8 0

3 years ago