Question 1202595
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Sophia prepares a fruit bowl where the weights of strawberries, grapes, and blackberries are in a ratio of 7:6:2, respectively. If these are the only pieces of fruit in the bowl, and the fruit weighs five pounds total, how many pounds of strawberries are used in the bowl?

Thanks, @IKLEYN. I calculated blackberries i/o strawberries

Fraction of weight of total fruit, made up of strawberries: {{{matrix(1,13, 7/(7 + 6 + 2), of, 5, lbs, "=", (7/15)5, "=", (7/3cross(15))cross(5), "=", highlight(7/3), or, highlight(2&1/3), lbs)}}}</pre>