Question

If 5x's = 4 y's and 12y's = 5z's, then 30x's= how many z's. ?.

Answer 1

10 z's

Explanation:

5x's=4y's = 15x's=12y's

12y's = 5z's

15x's = 12y's = 5z's so 15x's = 5z's

multiply both by 2

30x's = 10 z's