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Line L1 is y = 4x + 5, line L2 is 4y - 16x -2 = 0. Show that the lines are parallel to each other

4y-16x-2=04y=16x+2y=4x+0.5L1: y=4x+5 L2: y=4x+0.5Both lines have the same gradient and are therefore parallel to each other
MD
Answered by Myles D. • Maths tutor
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If x=3 and y=7, which of the following gives value of 23?

1.) y 2 /x2.) x 2 +2y3.) xy4.) y 2 -2x 2
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Answered by Megan M. • Maths tutor
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Bob buys 33 pens and 21 rulers for £6. A ruler costs 8 pence more than a pen. How much does one pen cost?

Let the cost of a pen = xLet the cost of a ruler = x+8Thus, (x*33) + ((x+8)*21) = £6 = 600 penceHence, 33x + 21x + 168 = 600 54x = 432 x = 8Therefore one pen costs 8 pence.
GL
Answered by George L. • Maths tutor
2983 Views

(2x+5)/3 = 11. Solve for x.

3 x ((2x + 5) /3) = 11 x 32x + 5 = 33(2x + 5) - 5 = 33 - 52x = 28 (2x) /2 = 28 / 2x = 14
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Answered by Alex S. • Maths tutor
6204 Views

Solve for x when x2+16x+28=0

(x+14)(x+2)=0 x=-14, x=-2
HR
Answered by Harikalan R. • Maths tutor
2765 Views