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wth rate over several weeks of two plants in their classroom. The equations of both plants are given where x represents the time in weeks and y represents the heights of the plants in inches.

Plant A: y = 1.8x + 3.1

Plant B: y = 2.3x + 1.9

Approximately how many weeks will it take for both plants to reach the same height? Round your answer to the nearest tenth.

1.9 weeks
2.4 weeks
3.1 weeks
7.4 weeks

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Respuesta :

Answer:

Number of week (x) = 2.4 weeks

Explanation:

Given:

Plant A: y = 1.8x + 3.1

Plant B: y = 2.3x + 1.9

Find:

Number of week (x)

Computation:

if heights are equal

1.8x + 3.1  = 2.3x + 1.9

0.5 x = 1.2

x = 2.4

Number of week (x) = 2.4 weeks

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