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Mathematics, 07.02.2021 09:30 onlymyworld27
In a town, 65% of the population is in the age 20-60, 25% is below 20, and the rest of the population comprises old retired people above 60. If the total population in the town is 64000, find the number of people in each category.
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Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
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In a town, 65% of the population is in the age 20-60, 25% is below 20, and the rest of the populatio...
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