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natita [175]
3 years ago
7

the system of equatuions 2y = 14 - 2x and y= -x+7 is graphed. what is the solution to the system of equations

Mathematics
1 answer:
Alex73 [517]3 years ago
4 0

Answer:

the solution is the whole line y = -x + 7

Step-by-step explanation:

both equations are identical

2y = 14 - 2x

=> y = 7 - x

which is exactly the same information as y=-x+7

so, there is no single crossing point. they are exactly covering each other. what "remains" is simply the whole line.

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Answer:

Population is all students from grades 3-12.

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Step-by-step explanation:

Given : A survey of​ third- to​ twelfth-grade students with a sample size of 2026 found that they devoted an average of 1 hour and 46 minutes per day to using entertainment media.

To find : Identify the population and the sample.

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3 years ago
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Answer:

Carl traveled 281.25 km by bus and 1,618.75 km by plane.

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t1 = the time of the travel by bug

t2 = the time of the travel by plane

t = t1 + t2 the total time

d1 = the distance traveled by bus

d2 = the distance traveled by plane

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Since average speed = distance/time we have time = distance/avg.speed

t1 = d1/v1 that is t1 = d1/60

t2 = d2/v2 that is t2 = d2/700

Plug the above values into t1 + t2 = t.

We have the following system of equations:

d1/60 + d2/700 = 7

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.......

Click here to see the step by step solution for 'd1' and 'd2'

.......

d1 = 281.25 km

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