There are 72 grasshoppers and spiders in a garden. Each grasshopper has 6 legs and each spider has 8 legs .if there are 558 legs altogether, how many grasshoppers are there

Answer 1

G+S = 72

6G +8S = 558

Multiply the first one by 6

6G+6s = 432

Subtract that from the second equation:

2S =126.

S = 63.

G = 72-63 - 9