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notka56 [123]
3 years ago
8

8n+7=31 what does n equal

Mathematics
2 answers:
shusha [124]3 years ago
7 0

Answer: n = 3

Step-by-step explanation:

oksano4ka [1.4K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

take the 7 and minus it from 31 then divide 8 from 31

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A meteorologist keeps hourly temperature records over the course of several years in order to look for long-term variations. Thi
Aleks04 [339]

Answer:

Observational study

Step-by-step explanation:

There are 3 types of statistical study:

1) Experimental: Under this, any experiment is done on a certain group of population.

2) Observational: Under this study, the events are observed regularly and the record is made.

3) Survey : Under this study, a survey is conducted with a a group of population and the record is made.

According to question, A meteorologist keeps hourly temperature records over the course of several years in order to look for long-term variations, this is an example of <u>observational study</u>.

4 0
3 years ago
Solve the following​
Anastaziya [24]

Answer:

Q1

|a-b| = b-a when a<b

Q2

104159/33000

Step-by-step explanation:

Q1

If a<b then a-b will always be negative.  To get the absolute value, we can take -(a-b) = -a+b = b-a.

Q2

Let x = 3.12789789789...

We isolate the repeating decimal to start after the decimal, so we multiply by 100.

100x = 312.789789789...

We want to multiply by 10 for each digit that repeats (in this case 3), to get the repeating part to the left of the decimal.

100000x = 312789.789789

Subtracting the two...

x(100000-100) = 312789.789789 - 312.789789

99900x = 312477

x = 312477/99000 = 104159/33000

3 0
3 years ago
if a washer and dryer cost $592 and the washer is $58 less than the dryer how much does the dryer cost
AleksandrR [38]

592 \div 2 = 296 - 58 = 238
3 0
3 years ago
Read 2 more answers
how can 12 people share 7 apples so that each apple is cut into equal pieces only and into no more than 4 pieces? It also must b
Afina-wow [57]

Answer:

1.75 or 1 3/4 pieces each

Step-by-step explanation:

3 pieces per apple x 7 = 21

21/12 = 1.75

5 0
3 years ago
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emmainna [20.7K]

distance = 5.5 mph x 1.5 hrs = 8.25 miles

distance = rate x time

ANSWER 2: You travel 20.9 miles in 3.8 hours.

8 0
3 years ago
Read 2 more answers
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