05-06-2016
Mathematics

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A beats B by 20m in a 100m race and B beats C by 20m. By what distance A will beat C? Please write steps

Respuesta :

jilly2272 jilly2272

05-06-2016

1. B + 20 = A
2. C + 20 = B

Therefore substitute B into equation 1

20 + 20 = A
A = 40

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