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A fuel tanker weighs 2500 tons when 25% full and 3700 tons when 75% full. What is its weight in tons when empty?

 

I started by trying to find out how much the tank weighes. I tried subtracting the two to find out what t+2/4*oil equals to. I got stuck after here! What should i do next?

 Apr 5, 2020
 #1
avatar+1968 
+1

When the tank is 100% full, it weighs 10000 tons.

When the tank is 75% full, it weighs 3700 tons.

When the tank is 50% full, it weighs 5000 tons.

When the tank is 25% full, it weighs 2500 tons.

 

Here is a hint. Can you take it from here?

 Apr 5, 2020
 #2
avatar+420 
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Hmm cal ty! But i know that i need to find out how much the tank weighs! I never thought of that so it might help.

 Apr 5, 2020
 #6
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T = Tanker(empty)
F =Fuel
[T + 0.25F]=2500.........(1)
[T + 0.75F]=3700.........(2), solve for F, T
F =2400 tons - weight of fuel when Tanker is full.
T =1900 tons - weight of Tanker when empty.

Guest Apr 6, 2020
edited by Guest  Apr 6, 2020
 #3
avatar+252 
+3

I got the tank is 1900 tons since when its 75% full its 3700 and when its 25% full it weighs 2500 so 3700-2500 is 50% of fuel which is 1200 tons. So 25% would be 600 tons. 2500-600=

1900 tons. 

 

😅😅😅😅

 Apr 5, 2020
 #4
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+1

Ohhh! Thank you I never though of that way!! Ha you did very gud! Ur gunna eventually have tons of likes!

 Apr 5, 2020
 #5
avatar+1968 
+1

I agree!! 

 

A new person with 111 likes is pretty impressive!

CalTheGreat  Apr 6, 2020

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