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uranmaximum [27]
3 years ago
9

Find the value of the variable and LN if M is between L and M LM=4a,MN=8a,LM=40

Mathematics
1 answer:
Zanzabum3 years ago
7 0

LN = 120 and a = 10

<u>Step-by-step explanation:</u>

If we need to find the variable a as, LN is the line and M is the mid point between L and N. So LN = LM + MN

LM = 4a = 40

a = \frac{40}{4} = 10

MN = 8a =  8×10 = 80

So LN = LM + MN

    LN = 40 + 80 = 120

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Step-by-step explanation:

1. Multiply both sides of the equation by the reciprocal of the coefficient of r.

V\cdot\dfrac{3}{2\pi h^2}=r\\\\r=\dfrac{3V}{2\pi h^2}

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2. Multiply both sides of the equation by the reciprocal of the coefficient of h.

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4. Solve the perimeter formula for width, the substitute the given information and do the arithmetic.

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In general, solving for a particular variable involves "undoing" what has been done to the variable, usually in the reverse order. In part 4, the variable W has L added and the sum is multiplied by 2. We "undo" those operations, last operation first, by dividing by 2 and subtracting L.

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