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Maurinko [17]
3 years ago
12

You have $6.17. you buy 7 items that cost $0.76 each. how much money do you have left

Mathematics
2 answers:
Shkiper50 [21]3 years ago
6 0

Answer:

$0.85

Step-by-step explanation:

if you multiply 7x0.76=5.32

and then subtract the 6.17-5.32=$.85

Klio2033 [76]3 years ago
5 0

Answer:

.85

Step-by-step explanation:

Multiply .76x7 then subtract 5.32 from 6.17 and you get 0.85.

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Number of Text Messages a Day A random sample of n = 755 US cell phone users age 18 and older in May 2011 found that the average
Alexeev081 [22]

Answer:

The 95% confidence interval is  (29.54 - 53.46}

Step-by-step explanation:

given data:

\hat X = 41.5

Se = 6.1

n = 755

a) best estimate  \hat x = 41.5

b) at 95% confidence interval

\alpha = 1- 0.95 = 0.05

\alpha /2 = 0.025

z_{\alpha/2} = z_{0.025} = 1.96

at 95% confidence interval for [/tex]\mu[/tex]

\hat x \pm z_{\alpha /2} \times Se

41.5 \pm 1.96\times 6.1

41.5 \pm 11.96

The 95% confidence interval is  (29.54 - 53.46}

7 0
3 years ago
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goldenfox [79]

Answer:

x=12

Step-by-step explanation:

Since the angle needs to add up to 90, you will first need to subtract 30 from 90. This will leave you with 60. Next you will divide 60 by 5 which will give you 12 which is the answer.

6 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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