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...
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