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Vladimir79 [104]
3 years ago
11

Tom and some friends went to a movie. The show started at 2:30 P.M. and ended at 4:15 P.M. How long did the movie last?

Mathematics
1 answer:
dsp733 years ago
5 0
The movie would be 1 hour 45 minutes long
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Answer:

The slope of the line is m=−1.

The equation of the line in the slope-intercept form is y=−x+5.

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The equation of the line in the point-slope form is y−5=−x.

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Hi! This might be long but I hope it helps!

1. 115. If q=4, then the equation tells us that 0.1d+(0.25)⋅4=12.5. Subtracting 1 from both sides gives 0.1d=11.5, so d=115.

2. 100. If q=10, then the equation tells us that 0.1d+(0.25)⋅10=12.5. Subtracting 2.5 from both sides gives 0.1d=10, so d=100.

3. Yes. If you know the number of quarters, then you can determine the number of dimes from the equation. We can even write the equation in a way that shows this: d=125−2.5q. The expression 125−2.5qrepresents the output—it is the rule that determines the output d from a given input q.
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The roots of a certain quadratic equation is 1 and 2/3. Determine the equation
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Answer:3x^2-5x+2=0

Step-by-step explanation:

Format of a quadratic equation= ax^2 +bx+c

Let x=1 and 2/3

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When x=2/3

x-2/3=0.........(2)

Compare the equations

(x-1)(x-2/3)=0

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x^2-5/3x+2/3=0

Multiply all terms by 3

3x^2-5x+2=0

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