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28 April, 14:38

A gardener A is 7 feet tall and grows at a rate of 11 inches per year: type A is 7 feet tall and grows at a rate of 11 inches per year. Type b is 8 feet tall and grows at a rate of 9 inches per year

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  1. 28 April, 15:33
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    6 years (assuming the question is how many years it'll take for them to be the same height)

    Step-by-step explanation:

    You have to first convert the height of the trees into inches. 7 feet will convert into 84 inches and 8 feet will convert into 96 inches. since type a is 84 inches and grows 11 inches a year it'll create the expression 84+11x. Type b will create the expression 96+9x. Since you're looking for how long it'll take you set the expressions up to one another and solve for it.

    84+11x=96+9x

    -84 - 84

    11x=12+9x

    -9x - 9x

    2x=12

    x=6
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