374,904 views
26 votes
26 votes
The average weight of five cats is 5.2 kg. The weights of four of the cats are 5.4 kg, 5 kg, 4.8 kg, and 4.9 kg. Find the weight of the fifth cat.

User Chris Baxter
by
2.9k points

2 Answers

17 votes
17 votes
answer:
The weight of cat five is 5.9g

Step-by-step explanation:
The average of something can be found by adding all items together and then divide by how many items there are all together
User Worc
by
3.1k points
27 votes
27 votes

Answer:

5.9 kg

Step-by-step explanation:

Remember! To find the average of things, you add them al up and divide by how many things there are. This is an important detail that will help us solve the problem

It says the average is 5.2
This means ...

( weight of cat 1 + cat 2 + cat 3 + cat 4 + cat 5 ) ÷ 5 = 5.2

Let's plug in all of the values we know to find the weight of cat 5

( 5.4 + 5 + 4.8 + 4.9 + CAT 5 ) ÷ 5 = 5.2

Let's add all of this up and solve this!

( 20.1 + CAT 5 ) ÷ 5 = 5.2

multiply 5 by both sides so we can get the weight of cat 5 alone

20.1 + CAT 5 = 26

subtract

CAT 5 = 26 - 20.1

CAT 5 = 5.9

the weight of cat 5 is 5.9 kg

User Sajeer Ahamed
by
2.6k points
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