system of equations
5x+10=3(x+y)
x+7=3x+y...
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Mathematics, 21.06.2019 19:30
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
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Mathematics, 21.06.2019 19:30
Hi, can anyone show me how to do this problem? 100 points for this. in advance
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Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4
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