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Mathematics, 29.01.2020 18:46 abhibhambhani

Agroup of scientists studied the effect of a chemical on various strains of bacteria. strain a started with 9000 cells and decreased at a constant rate of 3000 cells per hour after the chemical was applied. strain b started with 4000 cells and decreased at a constant rate of 2000 cells per hour after the chemical was applied. when will the strains have the same number of cells? explain

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