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NeX [460]
3 years ago
10

Pls answer for points and brailliest answer

Mathematics
1 answer:
mylen [45]3 years ago
6 0

Answer:

10

Step-by-step explanation:

Let's call Ahmed's number x,

  • If he multiplies it by 2, it becomes 2x
  • He then divides it by 5 so it would be 2x ÷ 5
  • The result was 4, so it would be written as 2x ÷ 5 = 4

To solve for x,

  • First, multiply both sides by 5: 2x = 20
  • Finally divide both sides by 2 to get x on its own: x = 10
  • Answer: He was thinking of the number 10

You could also work backwards:

If he ×2 then ÷5, you would ×5 then ÷2 (doing the opposite):

  • 4 × 5 = 20
  • 20 ÷ 2 = 10

Hope this helps!

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