Mathematics, 12.01.2020 00:31, shawnr6989

David has two younger sisters, jane and sally. jane is 2 years older than sally and david is 4 times older than jane. sally is z years old.

part a

write two equivalent expressions that represent david’s age in terms of sally’s age, z, and explain how the two expressions relate to one another.

part b

which expression is more useful? why?

Answers: 3

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David has two younger sisters, jane and sally. jane is 2 years older than sally and david is 4 times...