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## Core jr. high and high school subjects

### Titusville, FL (32780)

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# Roland's Responses in WyzAnt Answers

#### 12รท2(6-7+4)x2=

What is the correct answer for:

12÷2(6-7+4)x2=

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Asked by Rich from Chino Hills, CA
20

Emily S. is right on the money.  For students new to this concept (order of operations) we teach the sentence, "Please excuse my dear aunt Sally."  Each word representing an operation to be used left to right.  THe only reason this is done is so we can all get the same answer.

#### in adjoining figure AE||BC, ?DAE = x, ?ACB = (x-15), ?BAC = (x/2 +y) and ?ABC = (y+15). find the value of x and y.

in adjoining figure AE||BC, ∠DAE = x, ∠ACB = (x-15), ∠BAC = (x/2 +y) and ∠ABC = (y+15). find the value of x and y.

Hints:   i) DAB is a striaght angle and ∠CAE = ∠ACB = (x - 15)

ii) Sum of triangle ABC = 180

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Asked by Benhur from Bolivar, TN
01

We do not see the figure.   Yet we know line AE is parallel to line BC.

THerefore, angle ABC must equal 90 degrees.

From algebra we can figure from the given facts the values of X and Y.

90 = X + 15  .= Y - 15.

SO, X = 105 degrees and Y = 75 degrees

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## Background Check Status for Roland H.

Roland H. passed a background check on 9/18/2012. You may run an updated background check on Roland once you send an email.