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3 years ago

2/3 · (9y - 15) = 14 im stoopid

Mathematics

1 answer:

Genrish500 [490]3 years ago

5 0

Answer:

y = 4

Step-by-step explanation:

2/3(9y - 15) = 14

multiply bot sides by 3

3 × 2/3(9y - 15) = 14 × 3

2(9y - 15) = 42

divide bot sides by 2

2(9y - 15)/2 = 42/2

9y - 15 = 21

add 15 to bot sides

9y -15 +15 = 21 +15

9y = 36

divide bot sides by 9

9y/9 = 36/9

y = 4

good

luck

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Step-by-step explanation:

a) We can model this a binomial experiment. The probability of success p is the proportion of customers that prefer the oversize version (p=0.60).

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$\mu=np=10*0.6=6$

As this is a discrete distribution, we have to use integer values for the random variable. We will approximate both values for the bound of the interval.

$LL=\mu-\sigma=6-1.55=4.45\approx4\\\\UL=\mu+\sigma=6+1.55=7.55\approx8$

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Step-by-step explanation:

Given:

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To find:

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Length of ribbon left after the 1 yard ribbon is used for project can be calculated by subtracting the length of ribbon used from the initial length of ribbon.

i.e.

Length of ribbon left = $1-\frac{1}{2} =\frac{1}{2}$ yard