2 years ago

I need help on number 4 plsss geometry beating me up rn :(

Mathematics

1 answer:

Kitty [74]2 years ago

8 0

Answer: The link doesnt work :/

Step-by-step explanation:

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Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance b

Ede4ka [16]

Answer:

After 1.7 hours

Explanation:

1. Calculate the average speed of train B

60mph = 3/4 (s) ⇒ s = 60 (4/3) mph = 80 mph

2. Build a table

When the two trains meet:

Train Average speed Distance time (distance/average speed)

mph

A 60 x x/60

B 80 240 - x (240 - x) / 80

3. Write the equation

The time, when the two trains meet, is the same for both trains:

$\dfrac{x}{60}=\dfrac{240-x}{80}\\ \\ \\ 80x=14,400-60x\\ \\ 80x+60x=14,400\\ \\ 140x=14,400\\ \\ x=14,400/140\\ \\ x=102.85miles$

4. Calculate the time:

x/60 = 102.86 / 60 = 1.7 hours

The two trains will meet after 1.7 hours

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2 years ago

Find the missing number in this function table.

kirill115 [55]

Answer:

Step-by-step explanation:

2(13)-1=25

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2 years ago

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Here are four questions A) 2/5 B) 2/3 C) 1/4 D) 1/10 put them in order

lara [203]

Answer:

1/10, 1/4, 2/5, 2/3.

Step-by-step explanation:

Convert the fractions into decimals.

2/5 = 0.4

2/3 ≈ 0.66666

1/4 = 0.25

1/10 = 0.1

Arrange from smallest to largest.

0.1, 0.25, 0.4, 0.6666

Change back to fraction form.

1/10, 1/4, 2/5, 2/3.

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2 years ago

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Adele is 5 years older than Timothy. In three years, Timothy will be of Adele’s age. What is Adele’s current age?

Ede4ka [16]

Adele is going to be 12 years old

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2 years ago

4y-4=_____ 4(y+1)=___ 2+4y=____

34kurt

If they are looking to have them all simplified, this is how they should look.

4y - 4
4y + 4
4y + 1

3 0

3 years ago