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A two digit number is 4 time the sum and 3time the product of it\'s digit .find the number |
| Answer» two digits, x & y10x + y = the number:>> A two digit number is 4 times the sum of its digits10x + y = 4(x+y)10x + y = 4x + 4y10x - 4x = 4y - y6x = 3y>> divide both sides by 32x = y >> " and twice the product of its digit."10x + y = 2xy>> Replace y with 2x10x + 2x = 2*x*2x12x = 4x^2>> Divide both sides by 4x3 = xtheny = 2(3)y = 6:>> the number = 36 | |