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Earn +20 ptsQ: Mary has three coins that equal 25 cents what are the coins?
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If Three years ago Mary was three times as old as her sister now Mary is twice as old as her sister how old is Mary now?
Mary is dead
Mike is three times as old as his little sister Mary in 4 years he will be twice as old as Mary how old is Mary?
Mary is 4 years old. [A+]
Mike is three times as old as his little sister Mary In 4 years he will be twice as old as Mary How old is Mike?
12,4...16,8
Mike is three times as old as his sister Mary in 4 years he will be twice as old as Mary how old is Mary?
Write and solve two simultaneous equations. a = Mary's age b = Mike's age Age now: b = 3a Age in 4 years: b + 4 = 2(a + 4)
How would you use the word disparity in a sentence?
Mary was fifteen and her cousin was twelve, so there was a three year disparity in their ages.
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