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Emily buys 3 pencils for 51p Work out the price of 4 pencils.

asked Nov 15, 2022 68.6k views

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Evil Buck · Answer 1 · 2022-11-22T03:30:51+0000

Answer:

68

Explanation:

We can write a ratio to solve

3 pencils 4 pencils

------------- = -------------

51 p x

Using cross products

3x = 51*4

3x = 204

Divide by 3

3x/3 = 204/3

x = 68

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68p

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