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3 years ago

14

Jalisa is making bracelets with leather bands. Each bracelet uses 7 3/4 inches of leather banding. She plans to make 4 bracelets

. How many inches of leather banding will she need?

1 answer:

marysya [2.9K]3 years ago

4 0

31 inches because 7x4=28 3/4x4=12/4 and 12/4=3 so 28+3=31

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Lapatulllka [165]

Answer:

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Let X the random variable that represent the Student scores on exams given by a certain instructor, we know that X have the following distribution:

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The deduction is explained below we have this:

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Since the variance for each individual observation is $Var(x_i)=\sigma^2$ then:

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And then for this special case:

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And using the normal standard distribution, Excel or a calculator we find this:

$P(Z>2.143)=1-P(z$

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4 years ago

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nignag [31]

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4 years ago

If 15 workers can paint 18 houses in 24

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Step-by-step explanation:

If 15 workers can paint 18 houses in 24 days, how many days will 40 workers take to paint 22 houses?

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# of days are inversely related to # of workers and directly related

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d = kh/w

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Solve for "k" using "15 workers can paint 18 houses in 24 days"

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Equation:

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Solve: How many days will 40 workers take to paint 22 houses?

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