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Ans it mental ability |
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Answer» Answer: 5t= 4e 12E =9d 6d =8s 25t+ 20e+ 18d+ 12s = 1330 1) rearrange the first three equations for e 5t = 4e t=4e/5 12e = 9d d= 12e/9 4e/3 6d = 8s 6(4e/3) =8s 8e =8s e =s 2) plug into eq4and solve for e 25 (4e/5) + 20e + 18(4e/3) + 12e =1330 20e + 20e +24e + 12e = 1330 76e = 1330 e = 17.5 3) solve for the other variables s = 17.5 d = 4 ( 17.5)/3 =70/3 t =4(17.5) /5=14 4) CHECK your answers 25(14)+ 20(17.5)+ 18(70/3) + 12(17.5) =,1330 350 + 350+420+210 = 1330 |
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