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Stolb23 [73]
3 years ago
9

It is a chilly January day. When you get up it is only 5°F outside. By noon, the temperature had risen 7°F. By 10pm, it had drop

ped 15°F. What is the temperature outside when you go to bed at 10pm?
Mathematics
2 answers:
worty [1.4K]3 years ago
6 0

Answer:-3

Step-by-step explanation:

its just adding and subtracting

RUDIKE [14]3 years ago
3 0

Answer:

-2ºf

Step-by-step explanation:

the temp is 5ºf outside in the morning, then it went up 7ºf more, so 5+7= 13

after that, you would then do 13-15 which would be -2

so by 10pm it would be -2ºf

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Convert 14ML (megalitres) iinto kilolitres
irakobra [83]

Answer:

14000Kilolitres

Step-by-step explanation:

1megalitre = 1000kilolitres \\

14megalitres = xkilolitres

Cross multiply

14 \times 1000 = xkilolitres

14megaitres = 14000kilolitres

6 0
3 years ago
What is the value of each expression (-3)2
k0ka [10]

First you had to remove parenthesis first.

-3*2=-6

Multiply by the numbers.

3*2=6

Final answer \boxed{=-6}

6/3=2

2*3=6

6/2=3

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

5 0
3 years ago
A recent survey indicated that the average amount spent for breakfast by business managers was $9.33 with a standard deviation o
olasank [31]

Answer:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3    

Step-by-step explanation:

Information given

\bar X=9.41 represent the sample mean

s=0.24 represent the sample standard deviation

n=81 sample size  

\mu_o =9.33 represent the value to verify

\alpha=0.05 represent the significance level

t would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true mean is higher than 9.33, the system of hypothesis would be:  

Null hypothesis:\mu \leq 9.33  

Alternative hypothesis:\mu > 9.33  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{9.41-9.33}{\frac{0.24}{\sqrt{81}}}=3    

4 0
4 years ago
Geroge bought 4 submarine sandwiches for a birthday party. if each person eats 2/3 of a sandwich, how many people can Geroge fee
Vlada [557]
George can feed up to 6 people because there are 12 pieces of sandwich and each person eats 2
7 0
4 years ago
If n = 37 cm and l = 12 cm, what is the length of m?
emmainna [20.7K]

<em> would say that the answer is </em><em>A. 25 cm</em><em> only because 37-12=25 and I don't necessarily know what the question is trying to ask.</em>

<em>Hope this Helps!<3</em>

6 0
4 years ago
Read 2 more answers
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