3.75 kg chocolate costs 21 $
Step-by-step explanation:
Cost of 0.70 kg chocolate = 4.20 $
[tex]\texttt{Cost of 1 kg chocolate =}\frac{4.20}{0.70}=6\$[/tex]
Now we need to find cost for 3.75 kg chocolate.
Cost for 3.75 kg chocolate = Cost of 1 kg chocolate x 3.75
Cost for 3.75 kg chocolate = 6 x 3.75
Cost for 3.75 kg chocolate = 21 $
3.75 kg chocolate costs 21 $
