Answer:
you multiply 0.45kg by 87kg you will get 39lb
Answer:
The answer is C
Step-by-step explanation:
I pick that answer because you have divide
5

5 x 8 = 40
6 x 1 = 6
40 / 6 = 6

= 6 2/3
(hope I'm right & this helps you!)
First if you want to check your answer take the answer you got and divided it by one of the other numbers like 457*342=156,294 and then dived 156,294 by 342=475 and that's how you know its correct!:) And how you get the answer
You can multiply the top equation by 3 and the bottom equation by 2, so you get:
-6y = 42
+6y = 18
(You also multiply whatever is in front but it's cut off so...)
Then you can add the equations so you get:
(whatever numbers cut off are) = 60
Then you solve for the variable cut off and sub it into one of the equations and solve for y.