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jolli1 [7]
3 years ago
12

Karen traveled 480 miles in 6 hours. She then increased her speed by 20 miles. How long did it take her to travel the next 560 m

iles?
Mathematics
1 answer:
ivanzaharov [21]3 years ago
3 0

Answer:

Step-by-step explanation:

480 divided by 6 is 80, so she was initially traveling at 80 mph.

She then increased her speed by 20 mph, therefore making it 100 mph. (Someone arrest her already.)

560 divided by 100 is 5.6 hours.

0.1 of an hour is 6 minutes.

0.6 of an hour is therefore 36 minutes.

Your answer is 5 hours and 36 minutes.

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3x² -16x-12 =0

We can solve this equation using formula.

a=3, b=-16, c=-12

x= \frac{-b+/- \sqrt{b^{2} -4ac} }{2a} 
\\ \\ x= \frac{16+/- \sqrt{16^{2}+4*3*12} }{2*3} = \frac{16+/- \sqrt{400} }{6} = \frac{16+/-20}{6} 
\\ \\ x_{1}= \frac{16+20}{6} =6
\\ \\x_{2}=  \frac{16-20}{6} =- \frac{4}{6} = -\frac{2}{3}
8 0
4 years ago
Will you help me?
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Answer:

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Step-by-step explanation:

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3 years ago
What is the equation of the line graphed?
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8 0
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6 0
3 years ago
approximate each irrational number to the nearest hundredth without using a calculator square root of 118 and 319​
Strike441 [17]

Answer:

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Step-by-step explanation:

Consider the provided number.

We need to find the approximate value of \sqrt{118} to the nearest hundredth.

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8 0
3 years ago
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