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insens350 [35]
3 years ago
10

When a number n is decreased by 7 and then the result is multiplied by 4, the product is equal to 88. Write

Mathematics
1 answer:
Zina [86]3 years ago
3 0

Answer:

n=29

Step-by-step explanation:

Not sure how to write  an equation for it.

But, I did 88 divided by 4 which is 22 then plus 7 29

88/4+7=n that is the best I can think of.

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Sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2.
Salsk061 [2.6K]
 (2x²<span> + 3x - 4) +  (8 - 3x) + (-5x</span>²<span> + 2)

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3 years ago
A horse ran 800 meters in 40 seconds , 1200 meters in 60 seconds , and 480 meters in 24 seconds . Is this a proportional relatio
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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.  

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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:

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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

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