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Type a tree is 5 feet tall and type b tree is 3 feet tall. Type a grows 18 inches a year. Type b grows 24 inches a year. When will they meet?
Solve algebraically!
1 Answer
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- cryptogramcornerLv 66 years agoFavorite Answer
Have to pay attention to units here. 18 inches is 1.5 feet, 24 inches is 2 feet
Height of tree a = 5 + 1.5t
Height of tree b = 3 + 2t
Where t is in years
They meet when
5 + 1.5t = 3 + 2t
Subtracting 3 from both sides gets us
2 + 1.5t = 2t
subtracting 1.5t from both sides get us
2 = .5t
t = 2/.5 = 4
In four years the trees will both be 11 feet tall
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