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MatroZZZ [7]
3 years ago
6

Rosa claims the longest string of prime factors for 30 is 2x3x5. Tyee claims there is a longer string, 1x2x1x3x1x5. Who is corre

ct why?
Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
Rosa is correct, as 1 is not considered a prime no.
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The surface of an office desk has a perimeter of 20 feet and an area of 21 square feet. what are the dimensions of the desk?
PolarNik [594]

Answer:

3 feet by 7 feet

Step-by-step explanation:

perimeter = 20 feet

area = 21 feet²

If the desk is a rectangle:

perimeter = 2l + 2w = 2 (l+w) = 20

                                    2 (l+w) = 20 , divide both sides by 2

                                          l+w = 10

area = l · w = 21

What numbers we know that have sum as 10 and their product as 21?

l + w = 10

l · w = 21

factors of 21 are 1,3,7

3+7 = 10

3 ·7 = 21

The dimensions of the desk could be 3 feet by 7 feet.

6 0
1 year ago
Write an addition fact that will give the same sum as 8+7
ahrayia [7]
You could do 5+10 or 12+3
4 0
3 years ago
Read 2 more answers
What is the opposite of the opposite of the number located at point a?
julsineya [31]

Answer:

A

Step-by-step explanation:

The opposite of point A is 9

Because the opposite of -9 is 9

And the opposite of 9 is -9

3 0
2 years ago
There are 188 people on the trip and their total cost for the bike tour was $5040. There were twelve more adults than seniors on
zavuch27 [327]

Answer:

The answer to your question is there were 88 children

Step-by-step explanation:

Data

Total number of people = 188

total cost = $5040

12 more adults than seniors

number of children = ?

adults = a

children = c

Process

1.- Write equations that help to solve this problem

             a + c = 188              Equation l

             a = c + 12                 Equation ll

2.- Solve by substitution. Substitute equation equation ll in equation l

           (c + 12) + c = 188

-Solve for c

            c + 12 + c = 188

            2c + 12 = 188

            2c = 188 - 12

            2c = 176

              c = 176 / 2

              c = 88

3.- Conclusion

There were 88 children

       

5 0
3 years ago
(a) A square has a perimeter of 12 cm. What is the length of each side?
myrzilka [38]

Answer:

P = 4 c

12 = 4 c

3 = c

Step-by-step explanation:

Hope this helps.

7 0
2 years ago
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