The total age for amelia, bernard, and cindy is 10w years. amelia is 2w years old. bernard is as old as cindy. express cindy's age in terms of w. if w = 4, how old is cindy?

Respuesta :

Amelia + Bernard + Cindy = 10w {the total of their ages is 10w}
2w + ? + ? = 10w {Amelia is 2w years old, Bernard and Cindy are the same}
? + ? = 8w {subtracted 2w from each side}
2? = 8w {added ? and ?}
? = 4w {divided each side by 2} 

Cindy is 4w 

If w = 4,
4w 
= 4(4){substituted 4 in for w}
= 16 {multiplied} 

If w = 4, then Cindy is 16

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