Ruby uses 1/4 yard of ribbon to make 2 Bows. Which expression shows the length of ribbon in each bow ?

Mathematics

1 answer:

Oksana_A [137]2 years ago

4 0

1/4 divided by 2. Hopefully this helped!!

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Line parallel to y= -2 + 7

SashulF [63]

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Step-by-step explanation:

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3 years ago

John earns $6.50 per hour. he worked 40.0 hours last week. what was the amount of his check?

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John gains 6.50 an hour
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2 years ago

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olya-2409 [2.1K]

Answer: Effect of outliers on mean median and mode

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3 years ago

The speeds of cars on a given i street we are normally distributed with a mean of 72 miles per hour and a standard deviation of

Ostrovityanka [42]

Answer: 72.78% of the drivers are traveling between 70 and 80 miles per hour based on this distribution.

Step-by-step explanation:

Let X be a random variable that represents the speed of the drivers.

Given: population mean : M = 72 miles ,

Standard deviation: s= 3.2 miles

The probability that the drivers are traveling between 70 and 80 miles per hour based on this distribution:

$P(70\leq X\leq 80)=P(\frac{70-72}{3.2}\leq \frac{X-M}{s}\leq\frac{80-72}{3.2})\\\\= P(-0.625\leq Z\leq 2.5)\ \ \ \ \ [Z=\frac{X-M}{s}]\\\\=P(Z\leq2.5)-P(Z\leq -0.625)\\\\\\ =0.9938-0.2660\ \ \ [\text{Using p-value calculator}]\\\\=0.7278$