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jeka57 [31]
3 years ago
13

The lengths of a lawn mower part are approximately normally distributed with a given mean mc021-1.jpg = 4 in. and standard devia

tion mc021-2.jpg = 0.2 in. What percentage of the parts will have lengths between 3.8 in. and 4.2 in.?
Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
5 0
<span>The best answer that is given to the question that is being presented above would be 68%. Since it is normally distributed and the lengths' range fall between the first lower and upper standard deviations of the distribution (which is 68%), then the answer is 68%. </span>
Lostsunrise [7]3 years ago
5 0

Answer: 68

Step-by-step explanation:

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Julio is paid 1.1 times his normal hourly rate for each hour he works over 28 hours in a
marusya05 [52]

Answer:

43-28= 15 extra hours

normal hourly rate = a

extra hourly rate = 1.1a

28a + 15(1.1a) = 631.90

28a + 16.5a = 631.90

8 0
3 years ago
Forgot how to do this pls help ​
Natali5045456 [20]

Answer:

the equation is 10x+50=120

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Step-by-step explanation:

3 0
3 years ago
A cafe only sells two types of sandwiches, turkey and steak. The cafe charges $4 for turkey sandwiches and $6 for steak sandwich
valkas [14]

Answer:

513 turkey sandwiches were sold.

Step-by-step explanation:

Let's use x to represent turkey sandwiches and y to represent steak sandwiches.

x = turkey sandwiches

y = steak sandwiches

x + y = 925 total sandwiches that were sold

4x + 6y = 4524 dollars that were made

x + y = 925\\y = 925 - x

Now that we know what y (steak sandwiches) equals, we plug it in to an equation to find x.

4x + 6(925-x) = 4524\\4x + 5550 -6x=4524\\

Now, we subtract 5,550 from BOTH sides so we can get x by itself.

-2x + 5550 - 5550 = 4524 - 5550\\-2x = -1026

Next, we divide both sides by 2, so x is bare.

\frac{2x}{2} = \frac{1026}{2}

x = 513

Since x represents turkey sandwiches, we have our answer: 513 turkey sandwiches were sold.

I hope this helps! :)

3 0
3 years ago
What is the unit rate $1.79 for 15 oz rounded to nearest tenth
ser-zykov [4K]

Answer:

$0.119... per oz, or 0.1

Step-by-step explanation:

$.179 ÷ 15 = 0.119...

Now round to the nearest tenth, and you get 0.1.

8 0
3 years ago
Area of the lawn? Please
Lesechka [4]

Answer:

I cant see the picture can you re post

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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