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Answers by Peter I.

-v/7 + 8 = 19 (answer)

-v/7 + 8 = 19 You can approach the above problem by multiplying the equation by 7 (the denominator, 7, is applicable to all elements of the equation) (-v/7)*7 + 8*7 = 19*7 -v + 56 = 133 -v = 133 - 56 -v = 77 Therefore, v = -77

8x + 6 = 4x + 26 Remember that you are solving for x Therefore, place all the figures with x on one side and those without x on the other side. During the reshuffling, the signs are bound to change. For instance, bringing 4x to the place of 8x changes the sign to -4x...

There are two parts to the question. Only two possible scenarios: a) success or b) failure Applying the binomial concept: P(satisfaction) = 80% or 0.8; P(dissatisfaction) = 20% or 0.2 Therefore, P(9 or more satisfied persons) = P(9) + P(10) + P(11) + P(12) 1st part =...

2) Perimeter of a lawn is the sum of all the sides = 28m Let x represent the width The length = 2x - 1 Therefore, perimeter or 28m =  2(length + width)                                   ...

30-5x=35-8x? (answer)

Given the equation: 30 - 5x = 35 - 8x Solve for x by placing the numbers without x on one side of the equation and those with x on the other side. In doing so, remember to change the signs. For instance, moving 35 to the side of 30 gives (30 - 35) Likewise, transferring -5x to...