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masha68 [24]
3 years ago
13

In each of the following problems, type the price per unit per oz in blanks a. and b, then pick the best buy.

Mathematics
1 answer:
Kaylis [27]3 years ago
3 0

Answer:

B the 2 lb bread for 1.75

Step-by-step explanation:

The dollar per ounce for bread is $0.058 .

The dollar per ounce of bread is $0.055 .

b is the  best buy .

Step-by-step explanation:

First part

As given

Bread, 1 lb. loaf for 96¢ would .

As

1 dollar = 100 cent

Now convert 96¢ into dollars .

                     = $0.96

As 1 pound = 16 ounce

Thus

Bread 16 ounce loaf for $0.96 .

Therefore the dollar per ounce for bread is $0.058 .

Second part

Bread, 2 lb. loaf for $1.75

As  1 pound = 16 ounce

2 pound = 2 × 16 ounce

             = 32 ounce

Dollar per ounce = $ 0.055

Therefore dollar per ounce of bread is $0.055 .

Third part

As dollar per ounce for Bread, 2 lb. loaf for $1.75 is less as compared to Bread 1 lb. loaf for 96¢  .

Therefore b is the  best buy .

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777dan777 [17]

the answer is A)30

Hope it helps

4 0
3 years ago
Monica ramirez works at the hospital as a nursing assistant. she works 15 hours per week and earns $8.50 per hour. what is monic
nikklg [1K]
$127.50 because 15*8.50 is 127.50
6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=solve%20%5C%3A%20%20%5C%5C%20%20%5C%5C%20find%20%5C%3A%20the%20%5C%3A%20area%20%5C%3A%20of%20%
N76 [4]

Area = l ×b

a  = l \times b \\ a = 11 \times 9 \\ a = 99

5 0
3 years ago
A random sample of 56 fluorescent light bulbs has a mean life of 645 hours. Assume the population standard deviation is 31 hours
bezimeni [28]

Answer:

Step-by-step explanation:

We want to determine a 95% confidence interval for the population mean.

Number of sample, n = 56

Mean, u = 645 hours

Standard deviation, s = 31 hours

For a confidence level of 95%, the corresponding z value is 1.96.

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

It becomes

645 ± 1.96 × 31/√56

= 645 ± 1.96 × 4.142

= 645 ± 8.12

The lower end of the confidence interval is 645 - 8.12 =636.88

The upper end of the confidence interval is 645 + 8.12 =653.12

Therefore, with 95% confidence interval for the population mean life of fluorescent light bulbs is between 636.88 hours and 653.12 hours

3 0
3 years ago
Help how do I do this
IRINA_888 [86]

Answer:

First is no solution, second is unique solution (-3,0)

Step-by-step explanation:

8 0
3 years ago
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