It took Mary Lou 5/6 hour to write a report for English class. It took Heather 9/10 as much time to write her report as it took
2 answers:
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Answer:
x = 4.45 or x = - 4.45
Step-by-step explanation:
Here are the steps:
Substitute the values,
÷ 2 × 1
x = 2 ± √6
x = 4.45 or x = - 4.45
<em>good luck, i hope this helps :)</em>
One line passes through the points (-2,3) and (0,-3) , it means the y intercept is b=-3
and slope m =
So the equation of line will be
And the inequality should be
Or
And the other line passes through (-2,3) and (0,2)
So the y intercept is b=2
and the slope is
So the equation of line will be
Or
So answer is
Answer:
This is a proportional relationship, the constant of proportionality is 20m/s and it represents that the horse can run 20 meters every second.
Equation: d = 20s, where d=distance and s=number of seconds.
Step-by-step explanation:
In order to find out whether this relationship is proportional, you need to see if the rate at which the horse runs is constant (the same). If you look at the three sets of data (24, 480), (40, 800) and (60, 1200) where the pair is (seconds, meters), you can see that for any two sets of data the change in meters divided by the change in seconds is consistently 20m/s. For example:
Since the constant is 20, we know that the horse can run 20 meters every second. To find the horse's total distance, we need to multiply the rate by the number of seconds that it runs:
d = 20s