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Licemer1 [7]
3 years ago
5

Solve using substitution. 2x - 2y = 2 5x + y =14 help

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

X= 1.5 Y= 2.5

Step-by-step explanation:

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In a study of 200 students under 25 years old, 20% have not yet learned to drive. How many students cannot drive? Show me your w
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Answer: 200x.2=40

Step-by-step explanation:

200 students under 25

20%=.2

times each other make up 40 percent of the students don't know how to drive

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What is the answer to 16*40?
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16x40=640

I hope I helped

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Ron had 20 apples. He used 2/5 of the apples to make pies. How many apples did Ron use for pies?
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1/5 of 20 is 4.

2/5 of 20 is 8.

Therefore, Ron used 8 apples to make his pies.
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A customer buys an item that originally costs x dollars from a retail store and uses a $10.00 off coupon. The store clerk uses t
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4 0
3 years ago
While in flight, a hot air balloon decreases its elevation by 83 2/5 meters and then increases its elevation by 83.7 meters
Pachacha [2.7K]

An inequality which compares the changes in elevation of this hot air balloon while in flight is given by L - 83 2/5 ≤ L ≤ L + 83.7.

<h3>What is an elevation?</h3>

An elevation is also referred to as an altitude and it can be defined as the vertical distance (height) above a natural satellite or the surface of planet Earth such as land or sea level.

This ultimately implies that, an elevation (altitude) simply refers to the vertical height (elevation) of an object or physical body above a particular location or planetary reference plane such as land or sea level on planet Earth.

<h3>What is an inequality?</h3>

An inequality can be defined as a mathematical relation that compares two (2) or more integers and variables in an equation based on any of the following arguments (symbols):

  • Less than (<).
  • Greater than (>).
  • Less than or equal to (≤).
  • Greater than or equal to (≥).

For this exercise, let the variable L represent the initial height of this balloon. Also, since the hot air balloon decreased its elevation by 83 2/5 and increases its elevation by 83.7 meters, we have the following:

  • The lower limit is equal to: L - 83 2/5.
  • The upper limit is equal to: L + 83.7.

In this context, an inequality which models the changes in elevation of this hot air balloon is L - 83 2/5 ≤ L ≤ L + 83.7.

Read more on inequality here: brainly.com/question/6666926

#SPJ1

5 0
1 year ago
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