Question

1. What is the weight of a square if a triangle weighs 6 grams?

Answer 1

2 g

Explanation:

You want the weight of a square if a triangle is 6 grams, and 2 triangles together with a square has the same weight as 1 triangle together with 4 squares.

Balance

The hanger is in balance when ...

2t +s = t +4s

t = 3s . . . . . . . . subtract t+s

s = t/3 . . . . . . divide by 3

s = (6 g)/3 = 2 g

The weight of a square is 2 grams.

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