Question

the mass of a plastic triangle is 3g and rhe mass of a plastic square is 7 g Samson has a collection of plastic triangles and squares if there are 14 triangles and squares altogether and their combined mass is 58 g calculate how many triangles and how many squares Samson has.​

Answer 1

4 squares

10 triangles

Explanation:

t=3g

s=7g

t+s=14 t=14-s

3t+7s=58

substitute

3(14-s)+7s=58

42-3s+7s=58

reduce

4s+42=58

4s=16

s=4

t=14-4=10