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which number has a repeating decimal form?

a. square root of 15

b. 11 over 25

c. 3 over 20

d. 2 over 6

2/6

Step-by-step explanation:

simplifies to 1/3

that equals 0.33333333333333333333333333333333333333333333333333333...

C. 3 over 20

Step-by-step explanation:

The square root of 15 will be a never-ending, never repeating decimal (an irrational number).

11 over 25 in decimal form is 0.44.  This does not repeat.

3 over 20 in decimal form is 0.15.  This does not repeat.

2 over 6 reduces to 1 over 3; in decimal form, this is 0.3 repeating.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.