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Nikolay [14]
3 years ago
7

Solve for x. 21/2x−3/4(2x+5)=3/8 ​ x=−45/8 ​ x=−33/8 ​ x=41/8 ​ ​ x=53/8 ​

Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0

2\dfrac{1}{2}x-\dfrac{3}{4}(2x+5)=\dfrac{3}{8}\ \ \ \ \ |\cdot8\\\\20x-2\cdot3(2x+5)=3\\\\20x-6(2x+5)=3\ \ \ \ |\text{use distributive property}\\\\20x-6(2x)-6(5)=3\\\\20x-12x-30=3\ \ \ \ \ |+33\\\\8x=33\ \ \ \ |:8\\\\\boxed{x=\dfrac{33}{8}}

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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Now, the probability that a given class period runs between 50.25 and 50.5 minutes is given by :-

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Hence, the probability that a given class period runs between 50.25 and 50.5 minutes =0.025

Similarly , the probability of selecting a class that runs between 50.25 and 50.5 minutes = 0.025

5 0
3 years ago
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4 years ago
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8 0
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