439 Answered Questions for the topic Pre-Algebra

Pre Algebra Math Help

02/27/14

Subtract parenthesis six r raised to the third power plus eight r parenthesis minus parenthesis r squared minus five r plus six.
I really dont understand this need the answer! Please!
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Pre Algebra

02/24/14

What are three numbers that have a sum of 44 if the greatest number is 11 more than the least?
1,5,12 or 9,14,20 or 8,17,19 or 11,16,22
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Pre Algebra

02/05/14

How do you complete the square for quadratic equations
I am having trouble trying to solve quadratic equations by completing the square. 
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Pre Algebra

02/03/14

translate four times the sum of twice a number, x, and eight is thirty-two
translate four times the sum of twice a number, x, and eight is thirty-two into a equation
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Pre Algebra

01/27/14

help solve 755÷11
I need help solving this equation  
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Expert Answers •3
Pre Algebra

12/19/13

how do i explain a punnett square ?!??
How do i explain a Punnett Square?!??  
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Expert Answers •1
Pre Algebra

11/18/13

find an eqation of the horizontal line thru (-8,4)
I need help with this question I've been stuck for 3 days
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Pre Algebra

11/02/13

What percent of the graduating class had taken fewer than 6 math courses?
This year, 75% of the graduating class of Harriet Tubman High School had taken atleast 8 math courses. Of the remaining class members, 60% had taken 6 or 7 mathcourses. What percent of the... more
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Pre Algebra

10/23/13

I am trying to get the answer for d=8t
Damon runs the 100-meter dash at an average speed of 8 meters per second. The equation d=8t describes the distance d that Damon can run in t seconds at this speed. Represent the function by a graph.
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Pre Algebra

10/17/13

9h^-2*5h^10
Please explain your answer. Do not put 9h and 5h in parenthesis.
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Pre Algebra

10/09/13

1.8c = 5.5
ughhhh i need help im so stuck and i asked for help but nobody knows how please help
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Pre Algebra Multi Step equation

10/08/13

I need help with solving multistep equation homework
2/3 x + 5x -3 = 4/6     3x/4 -3 = 1/2
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Pre Algebra Math Help

10/08/13

i need help on this
what is x+3+4x-8
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Pre Algebra

09/26/13

A satellite orbits the earth at about 13^4 km per hour. How long would it take to complete 24 orbits, which is a distance of 13^5 km?
laws of exponents
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Pre Algebra

09/12/13

evalutate this expression for these numbers: x=s,y=2,z=5. the quotient of 45 and z=
  its pre-algebra
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Pre Algebra

09/12/13

PLEASE ANSWER IN 24 HOURS Could you please review to make sure i have done this problem correctly
n/2+10=7 n/2+10-10=7-10 n/2=-3 We think that we should multiply by the two, the denominator, and will end up with -6, is this correct? Please double check me
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Pre Algebra

09/05/13

PLEASE ANSWER WITHIN 24 HOURS I am having trouble with the problem below
I am getting 72/28 which cannot be right for this problem: 3/8h+7/12= 3/4 Like i said, we keep getting 72/28, please help
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Pre Algebra

09/05/13

Can someone please help me? PLEASE ANSWER WITHIN 24 HOURS!!!!!!!!!!!!!!!!!
Ok i am having trouble with this problem, i was hoping someone could help me, i have submitted it before and no one has answered. Here it is: 3/5k-7/10=1/2 We end up getting 45/14, which i know... more
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Pre Algebra

09/04/13

Is my answer correct? PLEASE ANSWER WITHIN 24 HOURS
I was wondering if this is the correct answer to this particular problem: 3/5k-7/10=1/2 3/5k-7/10+10/7=1/2+10/7 5/3*3/5k=27/14*5/3=40/14 Answer: 40/14  
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Pre Algebra

09/04/13

Is this answer correct for this problem? PLEASE ANSWER WITHIN 24 HOURS
Ok this is my problem and the steps i used to get the answer, is my answer correct or not? My problem is: 3/8h+7/12=3/4 3/8h+7/12-12/7=3/4-12/7 8/3*3/8h=27/28*8/3 18/7 is my answer
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Pre Algebra

09/04/13

Is my answer right? PLEASE ANSWER WITHIN 24 HOURS
I was wondering if my answer is correct in this problem, it doesn't seem right but if it is i would like to know. My problem is: 5/7n-3/14=1/2 5/7n-3/14+14/3=1/2+14/3 5/7n=7/3... more
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Pre Algebra

09/03/13

Is my answer for this pre algebra problem correct? PLEASE ANSWER WITHIN 24 HOURS
I will show the steps used, please tell me if they are correct or not. 5/7n-3/14+14/3=1/2+14/3 7/5*5/7n=2*7/5 n=14/5    
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Expert Answers •2
Pre Algebra

09/03/13

is my answer for this problem right? PLEASE ANSWER IN 24 HOURS
I will show the steps i used, if you could check them and tell me if i am correct or not. 3/8h+7/12=3/4 3/8h+7/12-12/7=3/4-12/7 8/3*3/8h=9/3*8/3 h=8/14=4/7  
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Pre Algebra

05/20/13

Simplify y7z7/yz4
simplify this equation: y7z5/yz4
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Pre Algebra

04/25/13

This is a math Q
What is 1/3 times pi times 25 times 12? Im doing my math homework and i don't really get it... :/
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