140x / 64y divide 5x/8y = >
40x/64y X 8y/5x Note the change of sign and the inversion of the Right hand fraction.
Cancel down by '5x'
8/64y X 8y/1
Cancel down by '8y'
8/8 X 1/1 =
8/8 =
1 The answer!!!!
Chat with our AI personalities
Just remember the basic rule : When dividing by a fraction, invert the fraction and multiply.
40x/64y ÷ 5x/8y = 40x/64y * 8y/5x = 320xy/320xy = 1
5x
25x2 + 40x + 16 = 25x2 + 20x + 20x + 16 = 5x(5x + 4) + 4(5x + 4) = (5x + 4)(5x + 4) or (5x + 4)2
15x2 + 58x + 48= 15x2 + 18x + 40x + 48= 3x(5x + 6) + 8(5x + 6)= (3x + 8)(5x + 6)
3/5x + 22 = 28 To solve this: Subtract 22 from both sides: 3/5x = 6 Multiply by 5x: 3 = 6*5x Divide by 6: 3/6 = 5x Divide by 5: (3/6)/5 = x Work it out: 3/6 = 0.5 0.5/5 = 0.1 x = 0.1
10 + 5x = 505x = 40x = 8