9. kai knows that 50% of a number is 20. how could he use that information to determine what 150% of the…
9. kai knows that 50% of a number is 20. how could he use that information to determine what 150% of the number is?
Answer
Explanation:
Step1: Find the original number
Let the number be (x). We know that (50%) of (x) is (20), so (0.5x = 20). Solving for (x), we get (x=\frac{20}{0.5}=40).
Step2: Calculate (150%) of the number
Now we need to find (150%) of (x). Since (x = 40), and (150%=1.5), then (1.5\times40 = 60).
Answer:
(60)