Two math teachers come together and write math problems about fruit vendors. If Teacher A can write 50 problems in 60 minutes and Teacher B can write 50 problems in 80 minutes, how long would it take them to write 50 problems if they worked together?

step-by-step explanation:

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step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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