Answer:
48 yellow triangles
Step-by-step explanation:
this problem can be represented as a ratio
4b : 12y (4 blue to 12 yellow)
16 blue triangles is 4 more time the amount than the original ratio.
16b : ?y
you can solve this problem by multiplying 12 by 4
12 * 4 = 48
this now means that for the 16 blue triangles, there should be 48 yellow.
16b : 48y
i hope this makes sense to you, and i was helpful.
stay safe!!
:)