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allochka39001 [22]
4 years ago
7

The Environmental Protection Agency provided fuel-economy data on 1,134 traditional gasoline powered vehicles. These vehicles ha

ve mileage that's normally distributed with mean 22.2 miles per gallon, and standard deviation of 5.2 mpg. What percentage of vehicles have gas mileage above 25 mpg?
A. 70.5%

B. 89.5%

C. 50%

D. 29.5%​
Mathematics
1 answer:
Airida [17]4 years ago
7 0

Answer:

A

Step-by-step explanation:

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What is the unit rate $1.29 for 15oz to nearest tenth
Nina [5.8K]

Answer:

The unit price of an item is the cost for each unit.

The unit price may be calculated for several reasons.

It will allow an easy comparison of the cost of the same quantity of items that come in different sizes.

For example, Company A sells peaches in a can. Their can holds 16 oz of peaches at a price of $1.60. Company B also sells peaches in a can, but their can holds 10 oz of peaches at a price of $1.10. At first glance, Company B looks like they might have cheaper peaches because of the lower overall price, but when you calculate the unit price, you get a more accurate way to compare.

For Company A, $1.60 ÷ 16oz = $0.10 per ounce.

For Company B, $1.10 ÷ 10oz = $0.11 per ounce.

The peaches are measured with ounces as the unit, so now that we have unit prices, we can definitely tell that Company A is the better deal, if you like peaches!

Unit price can also be helpful to find the cost of a single item when many items are purchased together. This may be required if the items are going to be divided up and resold. It could also be useful if several people will pay together with each person paying their fair share of the cost based on how many items they receive.

Step-by-step explanation:

5 0
3 years ago
Please find the mean,median,mode, and range!!!<br><br> will give brainliest
zubka84 [21]

Answer:

Mean = 7

Median = 8

Mode = 3

Range = 9

Step-by-step explanation:

5 0
3 years ago
When working overtime, an auto mechanic gets paid 1.5 times the normal hourly wage. Overtime is the amount of time worked beyond
DedPeter [7]
So

x=hours
y=pay

use a piecewise function maybe

for x≤40, use y=21x


for x>40, use 840+1.5(21(x-40))


k, sso 46>40 so

840+1.5(21(46-40))
840+1.5(21(6))
840+1.5(126)
840+189
1029



A. 840+1.5(21(x-40))
B. $1029
7 0
3 years ago
In a recent year, 22 percent of email users said they spend less time using email because of spam. what fraction of email users
Alchen [17]
Remember, percent is always out of 100. If you have 22%, you have 22 people per every 100 people, or, 22/100. 

22/100 is the incomplete answer because it needs to be simplified. If you divide both numbers by two you get 11/50 which is the lowest fraction you can have because 11 is a prime number.
5 0
3 years ago
HELP ME PLEASE
Sidana [21]

1:500,000 = 8 : 8*500,000 = 8:4,000,000\\4,000,000 cm = 40 km

4 0
2 years ago
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