Question

0.9/0.5 = a/10 Plz help

Answer 1

a = 18

Explanation:

Step 1: Cross-multiply.

• 
  `0.5 * a = 10*0.9`
• 
  `0.5a =9`

Step 2: Divide both sides by 0.5

• 
  `(0.5a)/(0.5) =(9)/(0.5)`
• 
  `a = (90)/(5)`
• 
  `a = 18`

Step 3: Check if solution is correct.

• 
  `(0.9)/(0.5)=(18)/(10)`
• 
  `(9)/(5) =(18)/(10)`
• 
  `(18/2)/(10/2) =(9)/(5)`
• 
  `(9)/(5) =(9)/(5)`

Therefore, a = 18.

Answer 2

18

Explanation:

10/0.5 = 20

20 * 0.9 = 18