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Setler79 [48]
3 years ago
8

What's the value of x if 7x-5 =5x+23

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
6 0
7x-5=5x+23
7x-5x=23+5
2x=28
x=28/2
x=14
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Answer:

Option b.

Step-by-step explanation:

We can easily solve this problem by using a graphing calculator or plotting tool.

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Please, see attached picture below.

By looking at the picture, we can tell that the amplitude is equal to 1

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adoni [48]

Answer:

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variables:

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Lizette is training for a marathon. At 7:00 she left her house and ran until 8:30, then she walked until 11:30. She covered a to
Leokris [45]
<h3>Answer:</h3>
  • running speed: 8 mph
  • walking speed: 2 mph
<h3>Step-by-step explanation:</h3>

Let w represent Lizette's walking speed. Then her running speed is w+6. The relationship between speed, time, and distance is ...

  distance = speed × time

Lizette ran for 1.5 hours, then walked for 3 hours. Her total distance is ...

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Lizette's walking speed is 2 mph; her running speed is 8 mph.

6 0
3 years ago
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Express the area A of a right triangle as a function of the height h if the base of the triangle is twice it's height
borishaifa [10]
Base = 2 x height (b = 2h)
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