2 years ago

I'm doing systems of linear equations and need more help

Mathematics

1 answer:

Pani-rosa [81]2 years ago

8 0

Okay What’s the problem

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Enrique left the study group traveling 20 mph. Then, 2 hours later, Tevin left traveling the same direction at 28 mph. How long

nadya68 [22]

Answer:

After 7 hours Tevin will catch Enrique

Step-by-step explanation:

We have given speed of Enrique is 20 mph

Tevin left traveling after 2 hours of Enrique

Speed of Tevin is 28 mph

When Tevin catches Enrique will cover same distance

Let Enrique is traveling for t hours

Then Tevin will travel for t-2 hours

We know that distance = speed × time

So $20\times t=28\times (t-2)$

$20t=28t-56$

$8t=56$

t = 7 hours

So after 7 hours Tevin will catch Enrique

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3 years ago

An item costs x dollars and then a 20% discount is applied

Marat540 [252]

Answer:

If an item is x dollars and 20% discount is applied, the new price will be: 0.8x

Step-by-step explanation:

100 - 20%(20) = 80

80 = 80% or 0.8

So, the remaining of the price of x will be 0.8x.

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2 years ago

The sale price of a table is $472 it was 20% off what was the original price?

ira [324]

To solve, set an equation:

472=0.8x

Divide both sides by 0.8

472/0.8=0.8x/0.8

x=590

Answer: The original price was $590

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2 years ago

If a bottle contains 16.9 fluid ounces and a person drank 80% of it how many fluid ounces did that person drink?

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16.9×0.8= 13.52 fluid ounces

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3 years ago

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Which inequality statement describes the two numbers on a number line?

agasfer [191]

the correct answer would be

B) 6 < 16

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2 years ago

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I'm doing systems of linear equations and need more help​

I'm doing systems of linear equations and need more help