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Mathematics, 12.03.2021 08:10, lilbit217
A metalworker has a metal alloy that is 30% copper and another alloy that is 55% copper. How many kilograms of each alloy should the metalworker combine to create 50kg of a 50% copper alloy? The Metal worker should use _ kilograms of the metal alloy that is 30% copper and _ kilograms of the metal alloy that is 55% copper.
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Mathematics, 21.06.2019 21:30, xaguilar
Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
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A metalworker has a metal alloy that is 30% copper and another alloy that is 55% copper. How many ki...
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