Questions on Algebra: Operations with Signed Numbers answered by real tutors!

Tutors Answer Your Questions about Signed-numbers (FREE)

Question 460941: How to define which number is bigger( a or b)by using:a=a-b,b=b+a and a=b-a?
Click here to see answer by sudhanshu_kmr(1152)

Question 461435: 456448454/5000 + 93352662/10000
Click here to see answer by richard1234(7193)

Question 461435: 456448454/5000 + 93352662/10000
Click here to see answer by MathLover1(20849)

Question 462411: Rewrite the division as a multiplication -97/(-91)
Click here to see answer by algebrahouse.com(1659)

Question 464525: 26+40/(-5)-8/2*14
Click here to see answer by mpc12381(4)

Question 466201: Is this the place to ask about order of operations? I know PEMDAS but I've tried the probably 5 times and can't get it!
Evaluate 7[32 - 2(1 + 2)] � 7 + 52.
Click here to see answer by lwsshak3(11628)

Question 468005: using the formula C= lld, find C when d is 14 yards
Click here to see answer by ewatrrr(24785)

Question 472429: 4/5-{-1/4}
Click here to see answer by MathLover1(20849)

Question 473075: -7^2 , (-7)^2 why are they different?
Click here to see answer by stanbon(75887)

Question 474210: (5y^2-6)-(y^2+3)
Click here to see answer by stanbon(75887)

Question 474226: simplify the radical: square root of 112
Click here to see answer by MathLover1(20849)

Question 474208: (3y-5)^2
Click here to see answer by edjones(8007)

Question 474225: find the x and y intercepts of the line x-3y= 5
Click here to see answer by solver91311(24713)

Question 474223: solve by factoring 6x^2 -21x -12= 0
Click here to see answer by edjones(8007)

Question 474224: Solve. x^2 +14x = -49
Click here to see answer by edjones(8007)

Question 474224: Solve. x^2 +14x = -49
Click here to see answer by MathLover1(20849)

Question 474220: Factor 2x^2+x-15
Click here to see answer by rfer(16322)

Question 474219: Factor 2x^2-24x+40.
Click here to see answer by rfer(16322)

Question 476472: use the order of operations to simplify 5*16-10/5

Click here to see answer by MathLover1(20849)

Question 478438: what are the 6 consecutive odd integers beganing with -7?
Click here to see answer by Tatiana_Stebko(1539)

Question 478453: (+4)+(-8)+(+2)+(-3)
Click here to see answer by rfer(16322)

Question 479522: Evaluate 7[3^2 - 2(1 + 2)] � 7 + 5^2
Click here to see answer by stanbon(75887)

Question 479743: what is 1/25 as a percent and how did you get it? Thanks
Click here to see answer by stanbon(75887)

Question 479743: what is 1/25 as a percent and how did you get it? Thanks
Click here to see answer by Alan3354(69443)

Question 479907: I am helping my daughter with her 6th grade algebra then a number in () next to a number with no direction sign like x or + or - what do you do with it.
for example 4(7+3)or 10+(2)(5)
Click here to see answer by tinbar(133)

Question 482386: please help me solve this problem [24-6(3-1)]/4
Click here to see answer by rfer(16322)

Question 484286: -5(3x-12)=30-9x
Click here to see answer by parthdesai27(11)

Question 485686: a certain number is multiplied by 4 and the product is divided by 3. if the result is 20 . what is the number?
Click here to see answer by deborabr(181)

Question 485664: 9a - 6b for a=6 and b=2
Click here to see answer by stfuenaira(10)

Question 485660: How do you solve -5(4s+1)<23?
Click here to see answer by stfuenaira(10)

Question 479871: (-2/7)(-5/8)
Click here to see answer by stfuenaira(10)

Question 478727: perform the indicated operation and,if possible simplify
32/45 / 48/35=
55/86 - 27/86=

5/11 + 1/4=
Click here to see answer by stfuenaira(10)

Question 407044: -s+4=7s-3
Click here to see answer by stfuenaira(10)

Question 396195: (76-40 x 2) + (2 x 10)=
Click here to see answer by stfuenaira(10)

Question 486337: -17-(+9)=
Click here to see answer by Tatiana_Stebko(1539)

Question 349954: Problem: Hiking up a mountain, you notice that the air temperature drops 10 degrees celsius for every 1000 meters increase in elevation. Write a multiplication expression to represent the decrease in temperature if you hike up the mountain 3000 meters. Then evaluate the expression and explain its meaning.
This is a problem for my sixth grader's math homework and my wife and I are completely stumped. Neither of us can remember how to relate the temperature to the elevation in an equation and the lesson in the math book stops short of this type of problem (this particular problem is like a brain teaser at the end of the assignment). Can you help?
Click here to see answer by Vickiets(1)

Question 488001: Please show me step by step on doing this math problem.
(-8)to the 2nd exponent+ 42/[18-(6+5)]=
Click here to see answer by Edwin McCravy(20054)

Question 488383: -6+13-4
Click here to see answer by rfer(16322)

Question 488912: I need help awnsering x+y2+3x+xy ? I dont get it . It say combine like terms.
Click here to see answer by stanbon(75887)

Question 491011: represent 100 degress ferenhit with a signed number
Click here to see answer by Alan3354(69443)

Question 492074: =25+3(5)-5(-5)
=?
Click here to see answer by stanbon(75887)

Question 492070: 5t-5≤6t
Click here to see answer by stanbon(75887)

Question 492947: square root of 132
Click here to see answer by nerdybill(7384)

Question 493147: I need help figuring out what this symbol is: [ here's the equation 4[3(21-17)+3] so what is [
Click here to see answer by deborabr(181)

Question 493621: Write a multiplication or division sentence to answer the question.
The temperature dropped 4 degrees each hour for 3 hours. What was the total change in temperature?
Click here to see answer by deborabr(181)

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