9t2 + 42t + 49 is a perfect square, equal to (3t + 7)2
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-12t+4
9t = 18000 lbs
T is table spoon
9(5+t) < 6 or simplified 45 + 9t < 6 then 9t< -39 and t < -39/9 = t < -13/3
Name the digits 'T' and 'U', for 'tens digit' and 'units digit'. First statement: 4 (T + U) = 10T + U 4T + 4U = 10T + U ===> 3U = 6T ===> U = 2T Second statement: 10U + T = 10T + U + 27 9U = 9T + 27 ===> U = T + 3============================= U = 2T and U = T + 3 ===> 2T = T + 3 ===> T = 3 U = 2T = 6 The number could be 36. ================================ Check: First statement: 4 (T + U) = 10T + U 4 (3 + 6) ?=? 10(3) + 6 4(9) ?=? 30 + 6 36 = 36 Yay ! Second statement: 10U + T = 10T + U + 27 10(6) + 3 ?=? 10(3) + 6 + 27 60 + 3 ?=? 30 + 6 + 27 63 = 63 Double yay ! The number is definitely 36.