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wolverine [178]
3 years ago
5

What is 4/5 of 20.5?

Mathematics
1 answer:
ira [324]3 years ago
7 0
16.4
20.5/5=4.1
4.1*4=16.4 
............
You might be interested in
Ellen drove 357.9 miles. Her car gets about 21 miles per gallon. Which is the best estimate of how many gallons of gas Ellen use
olga55 [171]
The best thing to do is to divide the amount she has driven (357.9) by the miles (21)
As you're looking for an estimate, you have to round them.
357.9 rounds to 360
21 rounds to 20
Therefore, you've got to divide them
360/20= 18
Therefore, Ellen has driven approximately 18 miles
Hope this helps :)
7 0
3 years ago
Read 2 more answers
One side of a triangle is 3 times the second side. The third side is 17 feet longer than the second side. The perimeter of a
Nadya [2.5K]

Answer:

Step-by-step explanation:

lets have one side =a

P=3a+a+(17+a)=52

P=5a+17=52

5a=52-17

5a=35

a=7

second side=21

third side=24

3 0
3 years ago
From 75 pencils to 225 penicls
Masja [62]

Answer:

He gained 150 pencils

Step-by-step explanation:

So this person had 75 pencils and now has 225?

If so, this is just a subtraction problem!

Steps:

1. 225-75=150

--Subtract how many pencils he had from how many he has now to see how much he gained

This person gained 150 pencils.

Hope this helped!! :)

3 0
3 years ago
^^ question above! Thanks!
Aleksandr [31]
You can cross multiply and the answer would be 100/9
9/10=10/k
100=9k
k=100/9
7 0
3 years ago
KN bisects ZJKM. If mZNKJ = 7x-9 and<br> m2JKM = x + 3, find m2JKN.
BaLLatris [955]

Answer:

Step-by-step explanation:

7x - 9 = x + 3

6x - 9 = 3

6x = 12

x = 2

7(2) - 9 + 2 + 3

14 - 9 + 5

5 + 5 = 10

5 0
3 years ago
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