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Pie
4 years ago
13

Which inequality represents the graph shown?

Mathematics
1 answer:
Rina8888 [55]4 years ago
6 0

Answer:

y<= 2/5 x -8

Step-by-step explanation:

When we are dealing with inequalities we have to keep in mind that the graph are regions and not figures (like lines)

The region has orientation and it is given by the sign used, if it is above something, it means the > sign, otherwise the < sign.

Now, we have a line and the region is below, so there is a < sign involved, other thing to keep in mind is that the figure can be contained in the region if is graphed using a solid line, so there is the = sign involved

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When visiting his parents, Tyler drives at an average speed of 42 km/h through urban areas and at an average speed of 105 km/h o
MaRussiya [10]

Answer:

  168 km

Step-by-step explanation:

Let x represent the distance Tyler drives at the slower speed, and let y represent the distance at the higher speed. Using time = distance/speed, we can write equations for the total travel time:

  x/42 +y/105 = 2.5

  x/28 +y/60 = 4.0 . . . . . 1.5 hours more than the usual 2.5 hours

Multiplying the first equation by 210, we have ...

  5x +2y = 525

Multiplying the second equation by 420, we get ...

  15x +7y = 1680

Subtracting 3 times the first of these equations from the second, we have ...

  (15x +7y) -3(5x +2y) = (1680) -3(525)

  y = 105

Putting this into the very first equation, we get ...

  x/42 + 105/105 = 2.5

  x/42 = 1.5 . . . . . . subtract 1

  x = 63 . . . . . . . . .multiply by 42.

The total distance to Tyler's parents' house is ...

  63 km + 105 km = 168 km

4 0
3 years ago
Make x the main subject<br> 6x+a=5(x+t)
ratelena [41]

Answer:

x=5t-a

Step-by-step explanation:

4 0
3 years ago
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Answer:

18 is 1 and 8 put togother.

Step-by-step explanation:

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3 years ago
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-Dominant- [34]
Yup! We're all pretty good here.
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4 years ago
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Answer:

The answer is b, which is 3+x+3

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