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Nat2105 [25]
2 years ago
9

Krystal left the bookstore traveling 18 mph. Then, 3 hours later, Kori left traveling the same direction at 27 mph. How long unt

il Kori catches up with Krystal
Mathematics
1 answer:
Eddi Din [679]2 years ago
3 0

Answer:

Korl will catch up to Krystal in 2 hours.

Step-by-step explanation:

18x3=54 this shows how long Krystal has driven in 3 hours.

27x2=54 this shows that in 2 hours Korl will have driven 5 mph.

Now as you can see both quotient are 54 and the question is How long until Korl catches up to Krystal so it's 2 hours

HOPE THIS HELPED:)

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A commercial jet can fly 868 miles in 2 hours with a tailwind but only 792 miles in 2 hours into a headwind. Find the speed of t
erik [133]

Answer:

The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x -----> the speed of the wind in miles per hour

y ----> the speed of the jet in still air in miles per hour

we know that

<em>With a tailwind</em>

y+x=\frac{868}{2}

y+x=434 ----> equation A

<em>With a headwind</em>

y-x=\frac{792}{2}

y-x=396 ----> equation B

solve the system of equations A and B by elimination

Adds equation A and equation B

y+x=434\\y-x=396\\------\\y+y=434+396\\2y=830\\y=415

<em>Find the value of x</em>

y+x=434

415+x=434

x=434-415

x=19

therefore

The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

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3 years ago
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The area of a square piece of tissue paper is 25 square centimeters. How long is each side?
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5 centimeters. The area is Width times Height, and with a square the width and height are the same so just do "x²=25" and x would be 5.
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Answer:

The answer is c

Step-by-step explanation:

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I need a process (1) is the right answer<br> Thx~
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Yes it is the right answer. Nice job.

The range is the set of possible y values of a function. All you need to do is list off the y coordinates of the points shown. The points on the graph are

(1,2), (5,1), (6,3), (2,5)

in no particular order.

The y coordinates of those points are: {2, 1, 3, 5} which sorts to {1,2,3,5}

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Answer:

She can overcome obstacles. ...

She is strong-minded. ...

She is soft-hearted. ...

She has integrity. ...

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She sets goals. ...

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