Hứa 5 sao và ctlhn. Peter has 60 stickers more than Mary has. The number of Peter’s stickers is three times as many as the number of Mary’s stickers. How many stickers each of them has?

2 câu trả lời

Give Mary's stickers are x(x>0)

        Peter's sickers are 3x

Peter has 60 stickers more than Mary has so

3x-x=603x-x=60

   2x=60

      x=30

⇒ 3x=3×30=90

Therefore , Peter has 90 stickers .

                   Mary has 30 stickers.

No coppy

Give Mary's stickers are `x (x >0)`

        Peter's sickers are `3x`

Peter has 60 stickers more than Mary has so

`3x - x = 60`

   `2x = 60`

      `x = 30`

⇒ `3x = 3×30 = 90`

Therefore , Peter has `90` stickers 

                   Mary has `30` stickers

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