Questions on Algebra: Inverse operations for addition and multiplication, reciprocals answered by real tutors!

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Algebra: Inverse operations for addition and multiplication, reciprocals

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Question 4605: what is the reciprocal of 3 5/8?
Click here to see answer by guapa(62)

Question 5051: Could you send me some Alebra 1 questins. I would like to see where I am. It would be good if you send me multiple questions with different degrees of difficulty. If I do not understand some questions I will get back to you. I hope you can help me.
-Paaras Chand
Click here to see answer by rapaljer(3625)

Question 5992: The sign of the sum of two negative numbers is,...
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Question 5991: If two numbers have opposite signs, their quotient is,...

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Question 6031: If two numbers have opposite signs, their product is,...
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Question 6036: The reciprocal of -2 is,..
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Question 6037: (2y)(-2)=
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Question 6034: Dividing by n is the smae as multipling by,...
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Question 6033: If two numbers ave the sam esign, the product is,...
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Question 5990: If two numbers have opposite signs, their product is,....
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Question 5989: If two numbers have the same sign, their quotient is,...

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Question 6039: 2x+5=13,...
3x-15=9,..
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Question 6041: 3/4x-5=4,..
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Question 6038: -300=15x,..
1/2x=3 5/6,..
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Question 5988: If two numbers have the same sign, the product is,...
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Question 5987: Dividing by n is the same as multiplying by,...
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Question 6057: If a number is increased by 21, the result is 30. What is the number?
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Question 6057: If a number is increased by 21, the result is 30. What is the number?
Click here to see answer by CharStar(110)

Question 6059: Find three consecutive numbers whose sum is 60.

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Question 6060: The perimeter of a rectangle is 420 inches. The width is 4 inches less than the length.
What is the length of the rectangle?
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Question 6063: List 5 ways you can transform equations into equivalent equations.

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Question 6061: Find the number which is 150 greater than it's opposite.
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Question 6042: 3x + 2
------ =7
2
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Question 6056: 24x+5=12x+41,...
3(x+5)=4,...
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Question 6058: 2/3x=24,...
3(x-5)+7=16,...
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Question 6058: 2/3x=24,...
3(x-5)+7=16,...
Click here to see answer by guapa(62)

Question 6075: 1) The expression x5 means,....
2) Inthe expression xn, n is called the,... and x is called the,....
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Question 6078: Evaluate each of the following if a=3 and b=4.
1)(ab)2
2)ab2
3)(a-b)3
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Question 6079: Writ each expression in exponential from.
1) x.x.y.y.y
2) a.b.b.a.a.a
3) x.(-x).y.y.y
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Question 6085: Simplify.
1) (ab)3
2) (-3x)2
3) (-x2)3
4) -3x(x2+2)
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Question 6086: Simplify.
1) (x+2)(x+3)
2) (2x-5)(3x+2)
3) (2x+5)(x2-x-2)
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Question 6088: Two planes leave Chicago-one traveling due east and the other due west. The first travels 100 miles per hour faster than the second. How long will it be until they are 2000 miles apart?
Click here to see answer by CharStar(110)

Question 6091: 2/3(36x-6)=68
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Question 6090: In the period of a year, an investor lost twice as much as he gained. If he originally had $10,000 and now has $8,000, what amount did he gain abd what did he lose?
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Question 6095: 1) list 5 prime numbers.
2) find the prime factors of 624.
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Question 6095: 1) list 5 prime numbers.
2) find the prime factors of 624.
Click here to see answer by CharStar(110)

Question 6098: Find the missing factor.
1) 6x4=(3x3)( )
2) -35x2y=(-5xy)( )

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Question 6096: List all pairs of factors of each integer.
1) 18
2) 30
3) 17
4) -8
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Question 6100: Find the following products.
1) (x+5)(x+2)
2) (x-2)(x-2)
3) (x+5)(x-12)
4) (3c-4d)(2c+5d)
5) (5x-3)(3x-8)
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Question 6103: solve by factoring.
1) x2-5x+6=0
2) 2x2-9x-5=0
3) 3x2+5x-2=0
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Question 6103: solve by factoring.
1) x2-5x+6=0
2) 2x2-9x-5=0
3) 3x2+5x-2=0
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Question 6104: A rectangle is 4 times as long as it is wide. A second rectangle is 5 centimeters longer and 2 centimeters wider than the first. The areaof the second rectangle is 270 sq. centimeters greater than the first. What are the dimentions of the original rectangle?
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Question 6083: Add.
1) 3x=4
x-6
----
2) 2x-1
-x+1
----
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Question 6102: Factor each of the following.
1) 4x2+7x-2
2) 16y2=25
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Question 6106: subtract the lower polynomial from the upper one.
1) 6x+9
-2x+4
------
2) 2x2y-5xy2+2
-x2y+2xy2+2
------------

Click here to see answer by Abbey(339)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675