An electrician charges an initial fee of $35 for attending a house call. Thereafter, he charges $15 for every hour spent on the
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<h3>Answer: C) 6</h3>
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Explanation:
The weird looking E symbol is the greek uppercase letter sigma. It refers to a sum.
It tells us to add up terms in the form (-1)^n*(3n+2) where n is an integer ranging from n = 1 to n = 4.
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If n = 1, then we have
(-1)^n*(3n+2) = (-1)^1*(3*1+2) = -5
Let A = -5 as we'll use it later.
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If n = 2, then
(-1)^n*(3n+2) = (-1)^2*(3*2+2) = 8
Let B = 8 since we'll use this later as well
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If n = 3, then
(-1)^n*(3n+2) = (-1)^3*(3*3+2) = -11
Let C = -11
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If n = 4, then
(-1)^n*(3n+2) = (-1)^4*(3*4+2) = 14
Let D = 14.
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We'll add up the values of A,B,C,D to get the final answer
A+B+C+D = -5+8+(-11)+14 = 6
This means that
Answer:
She sell <u>2.075 kilograms</u> of pears at the farmer's market.
Step-by-step explanation:
<u><em>There is a mistake in the question some data is missing, so the correct question is below: </em></u>
<em>A farmer sells 8.3 kg of apples and pears at the farmer's market. 3 /4 of this weight is apples, and the rest is pears. How many kilograms of pears did she sell at the farmer's market?</em>
Now, to find the kilograms of pears.
Total weight of apples and pears = 8.3 kg.
Weight of apples = of 8.3 kg.
So, to get the weight of apples:
Thus, the weight of apples = 6.225 kg.
Now, to get the weight of pears we subtract the weight of apples from the total weight of apples and pears:
Therefore, she sell 2.075 kilograms of pears at the farmer's market.