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konstantin123 [22]
3 years ago
6

In the image, point A marks the center of the circle. Which two lengths must form a ratio of 2:1?

Mathematics
2 answers:
Elza [17]3 years ago
6 0

Answer:

option b. EF:AD=2:1

Step-by-step explanation:

we know that

In a circle the ratio of the diameter to the radius is equal to 2:1

because

D=2r

2r/r=2:1

so

In this problem

EF is a diameter

AD is a radius

therefore

EF:AD=2:1

harina [27]3 years ago
5 0
I hope this helps you

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there are 15 rafts available for people to use on the adventure river ride. each raft holds 12 people. the park runs this ride 3
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540 people can ride the wild river in 1 hour if all of the rafts are used and each raft is full

<u>Solution:</u>

Given, There are 15 rafts available for people to use on the adventure river ride.  

Each raft holds 12 people.  

Then, total people capacity over all rafts = 15 x 12 = 180 people.

The park runs this ride 3 times each hour.  

We have to find how many people can ride the wild river in 1 hour if all of the rafts are used and each raft is full?

Then, <em>total people count who take ride = number of rides x number of people per ride </em>

= 3 x 180  = 540

Hence, 540 people can take ride in 1 hour.

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3 years ago
What is the Interquartile Range for the following data set?<br> {5, 6, 7, 3,9,8, 3, 1,6,7,7)
DochEvi [55]

Answer:

sorting, we have 1 3 3 5 6 6 7 7 7 8 9. The middle number is 6. The lower quartile is 3. The upper is 7. 7-3=4.

Step-by-step explanation:

6 0
3 years ago
You bought a car 5 years ago for $10,000. The car depreciates 12% a year. What is the car worth now?
Marianna [84]

Answer:

$4000

Step-by-step explanation:

12 x 5 = 60

60% of 10,000 = 6,000

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3 0
2 years ago
For PE Mr Jones wants to split boys and girls equally into as many mixed groups as possible. There are 168 boys and 60 girls. Ho
Bond [772]

Answer:

12

Step-by-step explanation:

You need the greatest common factor of 168 and 60.

168 = 2^3 * 3 * 7

60 = 2^2 * 3 * 5

For the GCF, you need common factors with the lower exponent.

Between 2^3 and 2^2, choose 2^2.

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2 years ago
The ratio of money in Terry's bank account to Faye's bank account was 3:7. Terry then put £220 in his account and Faye withdrew
Nadusha1986 [10]

Answer:

Terry initially had £390

Step-by-step explanation:

The ratio of the original amount is 3:7

Let the original amount Terry has be t and the original amount Faye has be f

3/7 = t/f

or simply 3f = 7t ••••••(i)

Terry putting 220 means he now has

t + 220

Faye withdrew 300

He now has f-300

These values are equal

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4 0
2 years ago
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