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Firstly, you form the question into an equation. for example, J + T = 84. We know Jessica paid £38.50, so now we can add that to the equation. 38.50 + T = 84. Now that we have does this we move the 38.5 t...
(5 - x)/2 = 2x - 7, 5 - x = 2(2x - 7), 5 - x = 4x - 14, 5 + 14 = 4x + x, 19 = 5x, 19/5 = x
x=0.777...10x=7.77...9x=10x-x=79x=7so x=7/9so x=0.777...=7/9
This problem can be solved by using algebra and rearranging as follows:Let x = 0.545454...Then 100x = 54.545454...If we then subtract x from 100x we g...
v2 =u2+2asv2-u2=2asa=(v2-u2)/2s as required
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