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makkiz [27]
3 years ago
6

Maria's Grocery Store buys grapefruit at a cost

Mathematics
1 answer:
Amanda [17]3 years ago
4 0

Answer: 25 grapefruits

Step-by-step explanation:

They buy grapefruit at a price of 5 per dollar. This means that the price per grapefruit is:

= 1 / 5

= $0.20 per grapefruit.

They then sell at a price of 5 per $3. The selling price per grapefruit is:

= 3 / 5

= $0.60

The profit per grapefruit is:

= 0.60 - 0.20

= $0.40

In order to make a profit of $10, they should sell:

= 10 / 0.4

= 25 grapefruits

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Runelle collected river water for an experiment. She poured it into 8 jars. Each jar had the mixed number two and three fourths
Korolek [52]

Answer: 22 pints of water

Step-by-step explanation:

Runelle collected river water and poured in eight jars such that each jar had 2³/₄ of water.

The total amount of water collected by Runelle from the river will therefore be the sum of all the water in the 8 jars and because they are the same, we can simply multiply the quantity in one jar by 8 to see the sum:

= Amount of water in one jar * 8 jars

= 2³/₄  * 8

= 11/4 * 8

= 22 pints of water

7 0
3 years ago
Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. Assume
Sphinxa [80]

Answer: (1.55, 6.45)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline\ {x}\pm\ z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Significance level : \alpha: 1-0.99=0.01

Critical value : z_{\alpha/2}=2.576

Sample size : n=41

Sample mean : \overline{x}=4.0\text{ kg}

Standard deviation : \sigma=6.1\text{ kg}

Then, 99% confidence interval for population mean will be :_

4\pm\ (2.576)\dfrac{6.1}{\sqrt{41}}\\\\\approx4\pm2.45\\\\=(4-2.45, 4+2.45)=(1.55, 6.45)

8 0
4 years ago
madi has 8.80 in pennies and nickles. if there are twice as many nickles as pennies, how many pennies an nickles does madi have
Oduvanchick [21]

Answer:

160 nickels, 80 pennies

Step-by-step explanation:

160 nickels = $8

80 pennies = $0.80

$8 + $0.80 = $8.80

3 0
2 years ago
A parking garage opens at 8 AM. The graph shows the total number of cars in the garage. How many cars were parked in the garage
FromTheMoon [43]
I believe 198 or 197 cars were in the Garage
8 0
3 years ago
Read 2 more answers
What number is 27% of 52? Round to the nearest tenth if necessary.
Fittoniya [83]
27% of 52 is 14
Hope this helps. Brainliest?
7 0
3 years ago
Read 2 more answers
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