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just olya [345]
2 years ago
9

What is the average of 30, 40, and 80?

Mathematics
2 answers:
Alenkinab [10]2 years ago
8 0
Because 80+40+30 equals 150 then you divide by how many number there are and there are 3 so 150 divided by 3 = 50
Nata [24]2 years ago
6 0
40x80=3200
3200/2=1600
So the answer is 1600
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Where is the opposite of −10 located on a number line?
Rzqust [24]

Hey!

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The opposite of -10 is 10.

Number line in image below.

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Hope This Helped! Good Luck!

8 0
2 years ago
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A roller coaster climbs 180 feet above ground level then drops 60 feet .How far above ground level is the roller coaster?
RideAnS [48]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
What is estimate + (-3.05) + (-9.8)
katovenus [111]

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6. A fish tank measures 19.5 inches long by 12 inches wide by 15 inches tall. The tank is filled with water to a point 2 inches
forsale [732]

9514 1404 393

Answer:

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Step-by-step explanation:

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4 0
2 years ago
Please help me and show your wprk
stellarik [79]
This is how I find the GCF.

I find the prime factors. 

63/3 = 21
21/3 = 7
7/7 = 1 

81/3 = 27
27/3 = 9
9/3 = 3
3/3 = 1

Then I find the common prime factors:
63: 3 x 3 x 7
81: 3 x 3 x 3 x 3 

Then I multiply the common prime factors:
3 x 3 = 9

The GCF for 63 and 81 (number 3) is 9. 

I bet you can use this method for all the other GCFs! :)

For this one, find the prime factors like before, and if there aren't any besides one, then it's a prime number. 

75/3 = 25
25/5 = 5
5/5 = 1
 
The prime factorization for 75 is 3 x 5 x 5

(I don't know the answer to 7, 8, 9, 10, 11, 12, 25, or 26, sorry!)


3 0
3 years ago
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