<h3>The answer is:</h3><h2>D. 5 hours</h2><h2 />
The equation should be:
(70x) - (20x) = 250
Because we have all the possible answers, we can plug one of them into x to see if it equals 250 miles.
Use an educated guess. I'm going to go with 5 because it seems reasonable.
(70 * 5) - (20 * 5) = 250
Let's check to see if it equals 250:
Therefore, the answer is D. 5 hours.
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-Lena
Answer:
y=[-4]x+[10]
Step-by-step explanation:
For a line to be perpendicular to another it must have the reverse reciprocal of the opposite line, to find the reverse reciprocal you take your slope, flip the numerator and denominator, and multiply it by -1.
The slope
turns into
and is then multiplied by -1 to become
which can be simplified down to: 
Now that we know the slope we need the line to pass through a point, so we will use point slope form:

Substitute in our slope and point values:

Now solve for y:

Then you will find that line
runs perpendicular to
and intersects point (2,2).
Answer:
All rectangles are quadrilaterals
Step-by-step explanation:
The answer is B - 43.25
The two congruent sides will have congruent angles. One angle measurement is given. Triangle angles equal 180.
Take 180 and subtract the given angle 93.5. Then divide by 2 to get the measurements x and the other unknown.
180 - 93.5 = 86.5
86.5/2 = 43.25
Answer:
tell ur teacher am not sure about the question