I really need help with this. I don’t even know where to start um.

Mathematics

1 answer:

max2010maxim [7]3 years ago

8 0

Answer:

I don't know that looks hard

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Rachel is driving to visit her mother, who lives 250 miles away. How long will the

ivann1987 [24]

Answer:

Time for a round trip = 12.5 hours

Step-by-step explanation:

Mother's house = 250 miles

Total distance for the round trip = 250 + 250 = 500 miles

Given speed = 40 mph

Find time .

$Speed = \frac{distance }{Time }\\\\Time = \frac{distance }{speed } = \frac{500}{40} \\\\Time = 12.5 \ hours$

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3 years ago

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What is the equation of a line for non proportional relationship? Explain what each part means.

Mekhanik [1.2K]

Answer: $y=mx+b$

Step-by-step explanation:

y=mx+b is the equation for a non-proportional relationship. Essentially, you can use this for a proportional relationship as well, since the y-intercept of a proportional relationship will always be zero. $y$ and $x$ are the variables of the equation, and represent the coordinates of the line. $m$ is the slope of the equation. To find the slope, use rise over run, or the change in y between two points over the change in x between two points. The last part is the y-intercept, or $b$ . This shows when the line intercepts the y-axis.