Question

If it takes 450 J of energy to melt 5 g of a substance, how many joules would be needed to melt 15 g?

A. 9000 J
B. 6750 J
C. 2250 J
D. 1350 J

Answer 1

D.1350

Step-by-step explanation:

Because 5×3=15 and 450×3=1350