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irakobra [83]
3 years ago
14

Carolina goes to a paintball field that charges an entrance fee of \$18 and $0.08, per ball. The field has a promotion that says

, "Get $10 off if you spend $75 or more!" Carolina wonders how many paintballs she needs to buy along with the entrance fee to get the promotion.
Let B represent the number of paintballs that Carolina buys.
1) Which inequality describes this scenario?
Mathematics
1 answer:
Inessa [10]3 years ago
3 0

Answer: 18+0.08B>75

Step-by-step explanation: 713 paintballs

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In an 80/20 mortgage, what is the second mortgage used for?
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Answer:

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Step-by-step explanation:

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Determine the sample size needed to construct a 99​% confidence interval to estimate the average GPA for the student population
Volgvan

Answer: n = 14

Step-by-step explanation: margin of error = critical value × σ/√n

Where σ = population standard deviation = 1

n = sample size = ?

We are to construct a 99% confidence interval, hence the level of significance is 1%.

The critical value for 2 tailed test at 1% level of significance is gotten from a standard normal distribution table which is 2.58

Margin of error = 0.7

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0.7 = 2.58/√n

By cross multipying

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By squaring both sides

0.7^2 × n = 2.58^2

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3 0
3 years ago
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B/5 > 30

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3 years ago
What is 4xy-3xz+y-2x-5=
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2 years ago
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