Substitute the height y = 21 cm into the linear relationship y = 3x. Solving the resulting equation 21 = 3x gives x = 21 / 3 = 7. It will take 7 minutes. Cbse released Class 9 Ganita Manjari Part ...
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Substitute the height y = 21 cm into the linear relationship y = 3x. Solving the resulting equation 21 = 3x gives x = 21 / 3 = 7. It will take 7 minutes. Cbse released Class 9 Ganita Manjari Part ...