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Fudgin [204]
3 years ago
14

Find the intersection of the following sets: Set A : {1, 5, 10, 14, 22} Set B : {5, 14, 20, 22, 27}

Mathematics
2 answers:
Bumek [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Intersection means that the sets have terms in common

(5, 14, 22) are the common terms.

Likurg_2 [28]3 years ago
3 0

Answer:

A ∩ B  = { 5,14,22}

Step-by-step explanation:

Intersection is where the two sets meet, or what they both have in common

Set A : {1, 5, 10, 14, 22} Set B : {5, 14, 20, 22, 27}

Set A intersect B has 5 , 14 and 22 in common

A ∩ B  = { 5,14,22}

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A shelter in the city house birds and dogs . There are 25% more dogs then birds. If there are 50 birds how many dogs are there?
AfilCa [17]

Answer:

They have 83 dogs and 50 birds.

There are 133 animals in total in the shelter.

Step-by-step explanation:

So let's call the dogs D and the birds B.

D = 25% + B

What ever the amount of animals, the total for D must always be 25% more than B.

To get 100% of the animals, B must equal 37.5% and D must equal 62.5%.

The way I worked this out was:

100% - 25%= 75%

75% divided by 2= 37.5%

37.5% + 25%= 62.5%

And just to check

37.5% + 62.5% = 100%

So to work out 100%:

37.5% = 50

divide both by 37.5 to get 1%

1% = 1.333333

time both by 62.5 to get 62.5%

62.5% = 83.333313

We'll round that answer because I'm pretty sure they don't have a .333313th of a dog.

So D = 62.5% = 83

They have 83 dogs and 50 birds.

Phew! That was the hard part. Now onto something wayyy easier.

To get the total number of animals in the shelter we just do 83 + 50, which is 133.

There are 133 animals in total in the shelter.

Hope this helps you :)

7 0
3 years ago
Two out of every 5 jelly beans in a bag are green. If the bag contains 60 total jelly beans, how many green jelly beans are in t
Kazeer [188]

Answer:

24

Step-by-step explanation:

2/5 = 40%

40% of 60 = 24

6 0
2 years ago
Read 2 more answers
A student was given an assignment to determine the percentage of students that brought a bag lunch to school. The student chose
Scorpion4ik [409]

The answer is B. Cluster

5 0
3 years ago
Read 2 more answers
Find the first term and common ratio for the geometric sequence a2 =2.5,a4=62.5
fenix001 [56]

Answer:

a1 = 0.5; common ratio = 5

Step-by-step explanation:

Let the common ratio = r

a2 = 2.5

a3 = 2.5r

a4 = 2.5r * r = 2.5r^2

We are told a4 = 62.5, so

2.5r^2 = 62.5

Divide both sides by 2.5

r^2 = 25

r = 5

a2 = a1 * r

a1 = a2/r = 2.5/5 = 0.5

Answer: a1 = 0.5; common ratio = 5

6 0
3 years ago
What is the equivalent ratio of 26:7​
anastassius [24]

Answer:

52 : 14

Step-by-step explanation:

multiply the numbers by 2

3 0
2 years ago
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