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the questions are
1) Which number has all the following characteristics?
Its is prime
it is greater than 90
it is less than 100
it is not a multiple of 3

2) find x if x is prime and 23
3)The area of a rectangle is 36. What could be the dimensions of the rectangle if the lenght and width are whole numbers and neither is a prime number?

4)Find the common multiples of 8 and 20 that are less than 300

5)There is a prime number between 11 and 46 about which a teacher will answer three "yes" and "no" questions from her class. After answering the question, the first student to determine the correct number will get extra credit.
The students asked: 1. is it 5 or 6 more than a perfect square?
2) it is three more than a multiple of 7?
3)is the sum of its digits odd?
The answer were yes, yes, and no, respedtively. What is the number?

2007-10-30 11:49:27 · 8 answers · asked by babygirl 1 in Science & Mathematics Mathematics

8 answers

1) 91
2) 29
3) 4*9
4) 160, 80
5) .. confusing lol

2007-10-30 11:53:34 · answer #1 · answered by Anonymous · 0 0

OK

1. 97

2. 29

3. 6 x 6 or 9 x 4 if the numbers are unique

4. 8 = 2x2x2; 20 = 2x2x5
Common 2x2, so 2x2x2x5 = 40
so answer is 40, 80, 120, 160, 200, 240, 280

5. Perfect squares between 11 and 46

16, 25, 36
so numbers so far 21,22,30,31,41,42

Of those 31 is 3 more than a mutiple of 7

The number is 31.

2007-10-30 12:07:40 · answer #2 · answered by pyz01 7 · 0 0

For everyone else that answered #1...91 is not a prime number it is divisible by 7.

1 - 95
2 - 29
3 - 4, 9
4 - 40, 80, 120, 160, 200, 240, 280
5 - 31

2007-10-30 12:07:10 · answer #3 · answered by Anonymous · 0 0

This is as easy as Algebra can get. For the first question x+3=8 you just subtract the 3 from both sides 3-3 and 8-3 and the answer will be x = 5. So since x = 5 then 5 + 3 = 8

2016-05-26 03:26:12 · answer #4 · answered by ? 3 · 0 0

2) 1 and 36

2007-10-30 11:55:53 · answer #5 · answered by Anonymous · 0 0

1. 91
2. 29
3. 49
4. 160, 80

5.30

2007-10-30 11:55:25 · answer #6 · answered by Anonymous · 0 0

i belive it something along the lines 0f 94.65 but im not positive the 1 one

2007-10-30 11:54:42 · answer #7 · answered by ? 2 · 0 0

91

29

9 and 4

40 80,120,160,200.240, 280

31

2007-10-30 11:58:32 · answer #8 · answered by ironduke8159 7 · 0 0

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