3 years ago

What is 13/14+57/8 equally In fraction form

Mathematics

1 answer:

SpyIntel [72]3 years ago

6 0

Answer:

8 3/56

Step-by-step explanation:

8 whole number, 3 over 56

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Haley spent 1/2 hour playing on her cell phone that use 1/9 of her battery how long does she have to play on her phone to use th

grandymaker [24]

Answer:

4 1/2 hours.

Step-by-step explanation:

If 1/2 an hour only used up 1/9 of her battery, 9, 1/2 would give us 9/2, which if you simplified it gets you 8 1/2 hours. Hope this helps! Have a great day!

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3 years ago

Jessica works at a nearby electronics store. She makes a commission of 9% on everything she sells. If she sells a laptop for $37

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3 years ago

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Step-by-step explanation:

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2 years ago

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2 years ago

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An article gave the following summary information for fracture strengths (MPa) of n = 196 ceramic bars fired in a particular kil

Oliga [24]

Answer:

54.80 MPa to 55.92 MPa

Step-by-step explanation:

Sample mean fracture strength (x) = 55.36 MPa

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The upper and lower bounds for a 95% confidence interval are given by:

$U=x+1.960*\frac{s}{\sqrt{n}} \\L=x-1.960*\frac{s}{\sqrt{n}}$

The upper and lower bounds of the confidence interval are;

$U=55.36+1.960*\frac{3.99}{\sqrt{196}}\\U= 55.92\\L=55.36-1.960*\frac{3.99}{\sqrt{196}}\\L= 54.80\\$

The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa

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3 years ago