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1 year ago

7

Molly shared a spool of ribbon with 12 people. Each person received 3 feet of ribbon. Which equation can she use to find r, the

number of feet of ribbon that her spool originally had?
a. 3+r=12
b. r-3=12
c. 3r=12
d. r/12=3

2 answers:

BartSMP [9]1 year ago

8 0

Answer:

Its <u>D</u>

Step-by-step explanation:

koban [17]1 year ago

5 0

Answer:

d. r/12 = 3

Step-by-step explanation:

r = 3(12)

r/12 = 3

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Step-by-step explanation:

We are given that according to Net Market Share, Microsoft's Internet Explorer browser has 53.4% of the global market.

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Let $\hat p$ = <u><em>sample proportion of users who used Internet Explorer as their browser.</em></u>

The z score probability distribution for sample proportion is given by;

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P( $\hat p$ $\geq$ 0.457) = P( $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ $\geq$ $\frac{0.457-0.534}{\sqrt{\frac{0.457(1-0.457)}{70} } }$ ) = P(Z $\geq$ -1.29)

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