Answer:
10% of 40 = 4
Step-by-step explanation:
4 /40 = 0.1 = 0.1 x 100% = 10%
Answer: 10% of 40 is 4
set up the proportion:
is/of = %/100
4/40 = x/100
cross multiply & divide:
400 = 40x
40 divided by 400 is 10
x = 10%