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3 years ago

Dustin is riding his bike from Logan, Utah to Jackson Hole, Wyoming in a bike race. He must ride at least 200

Mathematics

2 answers:

garik1379 [7]3 years ago

8 0

Answer:

Sorry, it was cut off a bit and my handwriting a bit sloppy.

It would equal 7.69 hours as a decimal and rounded to 8 hours as a whole number.

Simora [160]3 years ago

4 0

Answer:

Step-by-step explanation:

If he has already biked 5634 miles, he’s past 200 miles.

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In a certain clothing store, 6 shirts and 3 ties cost $79.50, and 3 shirts and 2 ties cost $41. Determine the cost of each tie.

Genrish500 [490]

6x + 3y = 79.5
3x + 2y = 41 y = -3/2x + 41/2 y = -1.5x + 20.5

6x + 3(-1.5x + 20.5) = 79.5
6x - 4.5x + 61.5 = 79.5
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x = 12

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Now insert that number into the x to find the cost of each tie.

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3 years ago

X + 4y = 23<br> -3x = 12y + 1<br> is it no solution?

bagirrra123 [75]

Answer: Yes

Step-by-step explanation:

First multiply the first equation by three to get 3x+12y=69

Then subtract 12y from both sides of the second equation

Then add the first system and the second like this:

$3x+12y=69\\-3x-12y=1\\--------\\0+0=70\\0=70$

Because 0≠70, the system has no solutions

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