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grin007 [14]
3 years ago
7

Wayne started making oatmeal cookies at 1:50 PM. It took him 55 minutes to make the dough and 1 hour and 30 minutes to bake all

of the cookies. What time was it when Wayne finshed making cookies? ​
Mathematics
2 answers:
Gekata [30.6K]3 years ago
6 0

Answer:

4:15

Step-by-step explanation:

1:50 + 55 mins

2:45 + 1 hr 30 mins

4:15

Katyanochek1 [597]3 years ago
6 0
First we can add up the minutes so
1 hour= 60 mins
60+30+55= 145 mins
let’s minus 10 to make the 1:50 into 2
135 mins= 2 hours and 15 mins
2 pm + 2 hours and 15 mins
he finished at 4:15 pm
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3 years ago
Suppose that you were not given the sample mean and sample standard deviation and instead you were given a list of data for the
Troyanec [42]

Answer:

So, the sample mean is 31.3.

So, the sample standard deviation is 6.98.

Step-by-step explanation:

We have a list of data for the speeds (in miles per hour) of the 20 vehicles. So, N=20.

We calculate the sample mean :

\mu=\frac{19 +19 +22 +24 +25 +27 +28+ 37 +35 +30+ 37+ 36+ 39+ 40+ 43+ 30+ 31+ 36+ 33+ 35}{20}\\\\\mu=\frac{626}{20}\\\\\mu=31.3

So, the sample mean is 31.3.

We use the formula for a sample standard deviation:

\sigma=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\mu)^2}

Now, we calculate the sum

\sum_{i=1}^{20}(x_i-31.3)^2=(19-31.3)^2+(19-31.3)^2+(22-31.3)^2+(24-31.3)^2+(25-31.3)^2+(27-31.3)^2+(28-31.3)^2+(37-31.3)^2+(35-31.3)^2+(30-31.3)^2+(37-31.3)^2+(36-31.3)^2+(39-31.3)^2+(40-31.3)^2+(43-31.3)^2+(30-31.3)^2+(31-31.3)^2+(36-31.3)^2+(33-31.3)^2+(35-31.3)^2\\\\\sum_{i=1}^{20}(x_i-31.3})^2=926.2\\

Therefore, we get

\sigma=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}(x_i-\mu)^2}\\\\\sigma=\sqrt{\frac{1}{19}\cdot926.2}\\\\\sigma=6.98

So, the sample standard deviation is 6.98.

3 0
3 years ago
Angels I need MAJOR HELP
Vlada [557]
<2 and <3 are supplementary angles...therefore they must equal 180°

since <2 = 125
you can find the measure of <3 by subtracting the measure of <2 from 180°

180 - 125 = 55° < answer

hope this helps :)







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Answer:

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Crank

Step-by-step explanation:

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