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1. Divide 1/8 by 5/6. Write the result in simplest form.
2. List all the prime numbers between 45 and 80.
3. Write 18/81 in simplest form.
4. Write the following in the standard form of a number.
Six hundred one million, twenty-five thousand
5. Identify the numerator and denominator of the fraction 7/16.
6. Find the greatest common factor of 30, 45, and 50.
7. Divide 750mi by mi./gal. Be sure to attach the proper units
8. Find the reciprocal of 17/20.
9. Write the number in expanded form.
30,672
10. Estimate the following product by rounding each factor to the nearest hundred. Multiply 839 by 387.
11.

2006-10-06 09:04:49 · 8 answers · asked by **LIBERTY** 1 in Education & Reference Homework Help

8 answers

1. 3/20
2. 47,53,59,61,67,71,73
3. 2/9
4. 601,025,000
5. Num = 7 & Den = 16
6. 5
7. 750 units/gal
8. 20/17
9. Thirty thousand six hundred seventy two
10. 324,000

2006-10-06 09:20:12 · answer #1 · answered by aazib_1 3 · 0 0

1) 1/8 / 5/6 = 1/8 *6/5 = 1/4*3/5 = 3/20=0.15
2) 47 , 53, 59 , 61 , 67,71,73,79
3)18/81=2/9=0.2222
4)1 million 25 thousand 6 hundred = 1025600
5) 7 is numerator / 16 denominator
6) 30,45,60 = 3(10,15,20)=3*5(2,4) greatest common factor is 3*5=15
7)
8) 0.85
9)thirty thousand 6hundred n seventy two
10) 839*387 =324693

2006-10-06 09:21:06 · answer #2 · answered by S A 3 · 0 0

1. 3/20

2. 47, 53, 59, 61, 67, 71, 73, 79

3. 2/9

4. 601,025,000

5. numerator is the 7, denominator is 16

6. 5

7. ?

8. 20/17, or 1 (and) 3/20

9. Thirty thousand six hundred seventy two

10. 320,000

2006-10-06 09:13:41 · answer #3 · answered by Cheyenne 5 · 0 0

1. to divide multiply by the inverse, so 1/8 * 6/5, which is 6/40, both of which (6 and 40) can be divided by two, so it can be simplified to 3/20.
2. 46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80. all numbers that end in 2 or 5 aren't prime (because they are divisible by 2 and 5, respectively), so your left with 47,49,51,53,57,59,61,63,67,69,71,73,77,79. 51,57,63,69 are divisible by 3. 77 is divisible by 11. 49 is divisible by 7. so you have 47,53,59,61,67,71,73,79.
3.18/81. both 18 and 81 are divisible by 9, so 2/9
4.601,025,000
5.numerator 7-top, denominator 16-bottom
6.5, because they are all divisible by 5. factors of 30-1,2,3,5,10,15,30. factors of 45-1,3,5,9,15,45. factors of 50-1,2,5,10,25,50
7. 750 mi / mi/gal. multiply by inverse, 750 mi * gal/mi. 750mi/gal/mi.
8.20/17, just switch the top and the bottom
9.thirty thousand six hundred sixty two
10.839->800. 387->400. 8*4 is 32, so 32000

2006-10-06 10:11:40 · answer #4 · answered by Anonymous · 0 0

1. 3/20

2. 47, 53, 59, 61, 67, 71, 73, 79

3. 2/9

4. 601,025,000

5. numerator is the 7, denominator is 16

6. 5

7. ?

8. 20/17, or 1 (and) 3/20

9. Thirty thousand six hundred seventy two

10. 320,000

2006-10-06 09:16:34 · answer #5 · answered by guyanagyal4evr 2 · 0 1

1. 3/20
3. 2/9
5. numerator=7, denomenator=16
6. 5

2006-10-06 09:55:10 · answer #6 · answered by sud 2 · 0 0

you probably wont be able to check this before your homework is due. and i think whoever answers your question is an idiot

2006-10-06 09:15:59 · answer #7 · answered by Anjel 3 · 0 1

My dear, please dont abuse this section, stop chatting now and try to research these things.

2006-10-06 09:12:07 · answer #8 · answered by The young Merlin 4 · 0 0

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