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11111nata11111 [884]
3 years ago
9

Sabrina is visiting her dad 729 miles away in New York. In the first 3 hours, she has traveled 162 miles. How much longer does s

he have to travel if she keeps the same rate?
Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
4 0
Sabrina would have to drive approximately 10 1/2 more hours.
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Which system of equations has infinitely many solutions?
schepotkina [342]

Answer: B.

4x - 2y = 8\\-4x + 2y = -8

Step-by-step explanation:

Let's solve your system by elimination.

4x−2y=8;−2x+2y=6

Add these equations to eliminate y:

   4x-2y=8  

 -2x+2y=6    

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Substitute 7 for x in 4x−2y=8:  

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−2y/−2=−20/−2  (Divide both sides by -2)  

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2 years ago
Simplify this expression<br> x² x x x x
cupoosta [38]
Although x ² and x both have the variable x, you can’t add them together. So x + x + x + x is 4x and we just leave x ² the same. So the simplified expression is x ² + 4x. I hope this helped!!
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3 years ago
How do you simplify 7 (2x+10) thanks in advance
kramer
The only thing you should do is to multiply 7 by 2x and 10. 
so you will have: (7*2x) + (7*10) = 14x + 70 :)))
i hope this is helpful 
have a nice day 
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