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Darya [45]
2 years ago
7

Find the value of x that will allow you to prove that CD below is parallel to EF if the measure of 21 is

Mathematics
1 answer:
irina1246 [14]2 years ago
8 0

Answer:

23

Step-by-step explanation:

According to the diagram, two sum of <1 and <2 is 180 degrees

Hence 3x+30+81 = 180

3x+111 = 180

3x =180-111

3x = 69

x = 69/3

x = 23

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Answer:

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Step-by-step explanation:

35x15=525

525x$8.75=$4593.75

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2 years ago
Divide 7/15 by 3/5. <br> A. 75/21<br> B. 7/9<br> C. 7/25<br> D. 21/75
Digiron [165]
In this question there is nothing complicated. Only thing is to know the way fractions can be divided. Once that is known the problem would be one of the easiest to solve. Now let us get back to the problem and look at all the information's that are given in the question.
Divide 7/15 by 3/5 = (7/15)/(3/5)
                              = (7 * 5)/(15 * 3)
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Dividing the numerator and the denominator by 5 for simplifying purpose, we get
                               = 7/9
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