Answer:
The value of x is 160.
Step-by-step explanation:
First, you have to convert the percentage into decimal by dividing it by 100. Then multiply x, unknown value :
40% = 40/100
= 2/5
2/5 × x = 64
Next, you can solve the value of x by dividing 2/5 to both sides :
2/5 × x ÷ 2/5 = 64 ÷ 2/5
x = 64 × 5/2
= 160
