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TEA [102]
3 years ago
7

An 80% confidence interval for a proportion is found to be (0.27,0.33). What

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

.30

Step-by-step explanation:

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The store had a sale on potatoes the original price was $2.50 per lb the sale price was $1.99 per lb how much would we pay for a
mel-nik [20]
You would multiply the # of pounds (5) by the price ($1.99). So, 5 x 1.99 = $9.95.
5 0
3 years ago
Jeb has to pay a plumber $65 to come to his house and $40 per hour after that .write an equation for the cost (y) based on the n
zlopas [31]
65+40x=y
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5 0
3 years ago
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Aisha just received a paycheck from her new job she spends some of it buying music online and saves the rest in a bank account h
postnew [5]
Set y equal to 25 because this is the amount of money Aisha wants to save. This gives you 25 = 50-1.99x. Now we can solve for x, which is the variable. First, subtract 50 from both sides so that you can get the variable, x, by itself. After subtracting 50 from both sides, you are left with -25 = -1.99x . If it is easier for you, you can put the numbers on opposite sides so it reads -1.99x = -25 . Now divide both sides by -1.99 so that x is by itself. So -1.99x ÷-1.99 = 1x which is equal to just x and -25÷-1.99 = about 12.56, which is a decimal. (Remember that when you divide a negative number by a negative number, it becomes a positive number) Finally we have x = 12.56 (or 1x = 12.56) with 12.56 being equal to the number of songs Aisha can buy if she also wants to save money in her bank account. However, nobody can buy only .56 or part of a song. Round down to the nearest whole number, which is 12. This is how many songs she can buy and it makes sense because it is 12 entire songs, not 12 and just the chorus of a song. If you want to check, you can plug in 12 for x and she shouod have a little more than $25 in her bank account. So Aisha can buy 12 songs is she wants to save $25. I hope this helped :)
3 0
3 years ago
Sonia earned $2,100 at her uncle's orchard. If she worked for 70 weeks and earned the same amount of money each week, how much d
Drupady [299]

Answer:

30

Step-by-step explanation:

She earned 30$ a week(Brainlyest?)

7 0
3 years ago
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Use the following function rule to find f(28).
IrinaVladis [17]

What following function tool?

7 0
3 years ago
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