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hjlf
3 years ago
10

Sierra's karate class lasts 56 day. how many weeks does the class last?​

Mathematics
2 answers:
pantera1 [17]3 years ago
6 0
A week is equal to 7 days, so you have to divide 56 by 7. Sierra’s karate class lasts 8 weeks.
UkoKoshka [18]3 years ago
5 0

Answer: 8 Weeks

Step-by-step explanation:

One week is 7 days so if you divide 56 by 7 you get 8

56/7=8

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Help me with this 1,2,3. For each sequence, Determine with whether it appears to be arithmetic If it does find a common differen
pshichka [43]

Problem 1

<h3>Answer: Arithmetic, common difference = -4</h3>

-------------------

Explanation:

Pick any term of the sequence, and subtract off the previous term to find that,

  • term2 - term1 = -12 - (-8) = -12 + 8 = -4
  • term3 - term2 = -16 - (-12) = -16 + 12 = -4
  • term4 - term3 = -20 - (-16) = -20 + 16 = -4

Each time we get the same result, so that means we have an arithmetic sequence with common difference -4

This indicates that adding -4 to each term, or subtracting 4 from each term, will generate the next one.

Eg: term2 = term1 - 4 = -8-4 = -12.

==========================================================

Problem 2

<h3>Answer: Arithmetic, common difference = 5</h3>

-------------------

Explanation:

Similar to problem 1, this sequence is also arithmetic because we add on 5 to each term to get the next one

  • -6+5 = -1
  • -1+5 = 4
  • 4+5 = 9

Or you could subtract adjacent terms as done in problem 1, to find that the common difference is 5.

==========================================================

Problem 3

<h3>Answer: Not arithmetic</h3>

-------------------

Explanation:

Unlike the previous two problems, this sequence is not arithmetic.

We can see that

  • term2 - term1 = 12 - 3 = 9
  • term3 - term2 = 48 - 12 = 36

The gaps of 9 and 36 aren't the same. We need the same common difference between any adjacent terms to have an arithmetic sequence.

This sequence is instead geometric because

  • term2/term1 = 12/3 = 4
  • term3/term2 = 48/12 = 4
  • term4/term3 = 192/48 = 4

Each quotient is 4, showing the common ratio is 4. To find the next term, we multiply the current term by 4. So the next term after 192 would be 4*192 = 768, then 4*768 = 3072 is next, and so on.

3 0
3 years ago
2. Convert 4 cups to gallons.
Alecsey [184]

Answer:

4 cups = .25 gallons

6 0
3 years ago
Larry said 5% of 300 us 30 <br> True or False
Digiron [165]

Answer:

False

Step-by-step explanation:

5% of 300 = 15

Carlos

Virtuoso Helper

7 0
3 years ago
Read 2 more answers
Please help with 1-6
Debora [2.8K]

Answer:

1.) 3

2.) 5

3.) 4

4.) 10

5.) 9

6.) 7


5 0
3 years ago
Read 2 more answers
The population of a small town in Alabama is 382 people. If the growth rate is 0.7%, what will its population be in 30 years?
goldenfox [79]
Formula for growth:

y = initial • (percent growth + 1)^time/frequency of growth

So, since initial population is 382

Percent growth is 0.007

The time is 30 years

And it goes it by .07% every 1 year,

y = 382 • (1.007)^30/1

y= 470.9203732 people

Since we can’t have 0.9 of a person, the population after 30 years will be 470 people.



4 0
2 years ago
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