[FAC]

please help me with my SAT homework. (maybe you guys had these questions before)

1. A number is "nifty" if it is a multiple of 2 or 3. How many nifty numbers are there between -11 and 11?
a)6 7 c)11 d)15 e)17

2. What is the value of 2 to the 3/2 power minus 2 to the 1/2 power?
a)1/4 1/2 c)1 d)2 e)rad 2

3. If x is an integer less than 1000 that has a remainder of 1 when it is divided by 2,3,4,5,6,7 what is one possible value of x?

4. If the product of four consecutive integers is equal to one of the integers, what is the largest possible value of one of the integers?

5. If x and y are positive integers, and (13to the x power)to the y power=13to the 13 power, what is the average(arithmetic mean) of x and y?

6. 1/4 is the average (arithmetic mean) of 1/5 and what number?
a) 1/20 3/10 c)1/3 d)9/20 e)9/40

7. Which of the following is(are) greater than x when x=9/11?
a) 1/x x+1/x c)x+1/x-y

8. If A={1,2,3}, B={2,3,4}, and C is the set consisting of all the fractions whose numerators are in A and whose denominators are in B, what is the product of all of the numbers in C?

9. 3/7 over 7/3

10.7/9 x 7/9 OVER 7/9+7/9+7/9


trust me I tried and did most of the problems that was assigned to me but I just dont get the concept of these problems. I will appreciate it if you answer these problems for me annnnnnnnnd if you can please explain it! thanks

[eternalesnow]

1. First find out the number of multiples of two there are between -11 and 11, and then find number of multiples of three there are between -11 and 11. Add them togethre, and subtract by the number of those who are multiples of both two and three.

2. Fractional exponential powers are the same as square roots. For example: x^(1/2) = the square root of x. 4^(1/2) = the square root of 4 = 2.

3. In order to have a remainder of "1" from those divided. find the prime factors of those that you are trying to have a remainder of, and multiply that together. Then just add "1". In this way, the number will be the addition of 1 times any factor.

4. Set one of the four integers to "x" and then arrange the numbers relative to "x". Example if the first number is "x". Then the next conseuctive number is "x+1" and so forth.

5. Think about the exponential rules of powers.

6. Use algebra. (1/4 + x)/2 = 1/5

7. Only thing is to plug in the x-value.

8. Use the set rules to find all the possible combinations, and hten just multiply them together.

9. Use the division rule for fractions. x / (a/b) = x * (b/a)

10. Convert to the same base denomination, and then do the artihmetic.

If you still don't know how to solve, AIM me - nemoneko.

[FAC]

eternalesnow- your the best ever