A farmer has a square field that measures 500 m on a side. He has a choice of using one large circular irrigation system or four smaller ones, as illustrated. a. What percent of the field will the larger system irrigate? [Round your answer to 1 decimal place.]

b. What percent of the field will the smaller system irrigate? [Round your answer to 1 decimal place.

19

step-by-step explanation:

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step-by-step explanation:

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: