D) 16 tacks
Based on the pattern observed in the results, we can see that as the number of coils increases, the number of tacks picked up also increases. Therefore, the best prediction for the number of nails the electromagnet with 48 coils will pick up is 16 tacks.
Students build four electromagnets and test them by picking up metal tacks. Here are their partial results
12 coils 4 tacks
24 coils 9 tacks
36 coils 13 tacks
48 coils ? tacks
Which is the best prediction for the number of nails the electromagnet with 48 coils will pick up?
A) 13 tacks
B) 12 tacks
C) 20 tacks
D) 16 tacks
1 answer