Question

I really need help with this, please answer all parts and you will get a brainy!

Answer 1

1. A square is 4 grams.
2. 4s+12=2s+20
3. Since there are two circles on the left side, multiply that by 6 to get 12. The 4s stands for the four squares on the left side that have an unknown weight. For the right side, multiply 4•2 to get 8 for the four triangles. Multiply 2•6 to get 12 for the two circles. The 2s stands for the two squares on the right side that have an unknown weight. Simplify by adding like terms to get 12+4s=2s+20. Subtract 12 on both sides to get 4s=2s+8. Subtract 2s on both sides to get 2s=8. Divide 2 on both sides to get s=4 grams.

Answer 2

Part C: Each side of the hanger represents a part of the equation. Since the hanger is level, both sides are equal. For that reason, you set the sides equal to each other. Since you know what the circle and triangle weight, it’s easy to find the weight of the square