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rjkz [21]
3 years ago
7

Perform the indicated operation 2 3/8 x 5 3/4

Mathematics
2 answers:
Butoxors [25]3 years ago
4 0
Hello!

Change each mixed number to an improper fraction to make it easier

2 3/8 = 19/8

5 3/4 = 23/4

Now, multiply

19/8  × 23/4 = 437/32 = 13 21/32

Answer ⇒ 13 21/32

Ratling [72]3 years ago
3 0
2 \frac{3}{8} = \frac{2(8)+3}{8} =  \frac{19}{8}
5 \frac{3}{4} =  \frac{5(4)+3}{4} =  \frac{23}{4}

  \frac{19}{8}÷\frac{23}{4}
= \frac{19}{8} x \frac{4}{23}
= \frac{19(4)}{8(23)}
= \frac{19}{2(23)}
= \frac{19}{46}
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Explanation:

If you draw out the diagram, then you'll find that a 45-45-90 triangle forms. The nice thing about this type of triangle is that the two legs are always the same length. The horizontal leg is 100 meters, so the vertical leg must also be 100 meters.

Side note: this type of triangle is an isosceles right triangle.

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You could use the tangent rule to get the same thing

tan(angle) = opposite/adjacent

tan(45) = 100/x

1 = 100/x

1*x = 100

x = 100

In this case, the opposite leg is the vertical leg since it is furthest from the angle of elevation.

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Let E be an event and S be the sample space. The probability of E, denoted by P(E) could be computed as:

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So, the probability that a student earns a grade of A:

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Step-by-step explanation:

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