A triangle weighs 3 grams, and a circle weighs 6 grams. Use this applet to help find the weight of a square.

3.75 g

Step-by-step explanation:

Assume the weight of the square is x.

The hanger is in balance so the left side is equal to the right side.

Equation therefore is:

Triangle + Square + 3 * circle = 5* square + circle

3 + x + (3 * 6) = 5x + 6

3 + x + 18 = 5x + 6

5x - x = 3 + 18 - 6

4x = 15

x = 15/4

x =  3.75 g

i don't see nikolas work.

step-by-step explanation:

0 is its x and y coordinate