Determine the quantity needed to replace the question mark to make the scale balance The weight times the distance on both sides of the fulcrum (the triangle) must be the same to make the scale balance 6 kg

3m
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600 cm

The quantity needed to replace the question mark to make the scale balance is ? grams

work please, I wanna understand how to do it. thank you:)

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x

What 8/12+8/11 in another way than and improper fraction