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

Tutors Answer Your Questions about Signed-numbers (FREE)

Question 229793: what is the algebraic expression for three fourths the square of b
Click here to see answer by Alan3354(69443)

Question 229883: HI, my name is Donesha. I want to ask a simple question about negative an positive numbers.
So say,
What would these equal:
(+)+(+)=
(+)-(+)=
(+)*(+)=
(+)/(+)=
(-)+(-)=
(-)-(-)=
(-)*(-)=
(-)/(-)=
Click here to see answer by stanbon(75887)

Question 230479: How do I get my answer to equal 1 when the only numbers I have to use are 10,9,8,6,5. I can multiply,divide,subtract,and add. I have tried all the adding and subtracting ways. I have also tried getting the numbers to go negative so I can get it up to one.
Click here to see answer by stanbon(75887)

Question 231716: i need help with my homework

Click here to see answer by bamaboy(14)

Question 232639: tell whether the given value of the variable is a solution of the equation -5r=125;r=-15
Click here to see answer by Alan3354(69443)

Question 232911: can you help me solve this -14
-23
Click here to see answer by rfer(16322)

Question 234403: I have a question regarding order of operations:
how do i solve this problem:
59-35/7*4+53
Click here to see answer by kennysmom(1)

Question 236975: Hello, I can't figure out these 2 problems using Pemdas. Use each operation only once per problem (addition, subtraction, division and multiplication).Thank you!!!
12___6___4___2=24
12___6___4___2=14
Click here to see answer by RAY100(1637)

Question 237225: may i know what is the corrrect process for solving this problem?
the question is:
20/(3(2x-8)-(-56)/7)
thank you so much.
Click here to see answer by rapaljer(4671)

Question 238846: what is 6mt + t can it be simplified
and
2w-(5w-a)+6a
Click here to see answer by unlockmath(1688)

Question 239084: how do i get 24 using the numbers 9,8,7, and 6 and i have to use addition, subtraction, multiplication, and division just once
Click here to see answer by checkley77(12844)

Question 239444: I have a question regarding this solved problem on the site -
Answer by jim_thompson5910(13774)
The question was Combine like terms 5w - 6w and the answer said, 5w - 6w = -1w which also looks like 5w - 6w = -w.
Why do you remove the 1? How do you know when to do that? My daughter and I are confused about this.
thank you - karen gass
Click here to see answer by solver91311(24713)

Question 239832: what is the difference?
-5^2 - I thought the answer is 25
(-5)^2 - I thought the answer is 25
-(5)^2 - I thought the answer is -25

Click here to see answer by checkley77(12844)

Question 239973: how do you get 24 using onlt three operations with the numbers 8 8 6 1 using the numbers only once
Click here to see answer by Edwin McCravy(20054)

Question 240499: determine the value of "r" so that the line passes through each pair of points at the given slope.
(7,-5), (6,r),m=0
Please Help !
Click here to see answer by jim_thompson5910(35256)

Question 240530: -8(x-3) +12x= 15-(2x +3)

answer: -2 (anyone can show me why the answer is -2 and can give a full break down thank you).
Click here to see answer by solver91311(24713)

Question 240530: -8(x-3) +12x= 15-(2x +3)

answer: -2 (anyone can show me why the answer is -2 and can give a full break down thank you).
Click here to see answer by scott8148(6628)

Question 244162: How do you work the problem 2(x+3)^2-4=24
Click here to see answer by checkley77(12844)

Question 247184: I have a question about order of operations...
The problem is
a = 3
18 � 2a
My question is....can the variable be separated from the number, thereby treating it like 18 � 2 * 3, resulting in the answer 27,
or does the variable stay attached to the number 18 � 2(3), resulting in the answer 3
Thanks,
Schel
Click here to see answer by richwmiller(17219)

Question 249834: have problem with using 4's ex. (4/4)+4-4= 1 i got up to 9, I can not figure out 10 using the #4 only 4 times can you help
Click here to see answer by solver91311(24713)

Question 249853: 3a + a = 200, can you please help me solve this problem?
Click here to see answer by rfer(16322)

Question 250309: 90 is 8% of what number
Click here to see answer by richwmiller(17219)

Question 250307: 90 is 8% of what number
Click here to see answer by richwmiller(17219)

Question 250785: If z-5=-9 , find the numerical value of -2z-5 what does it equal and show work please!-2z-5
-2(-5)-5
-10-5= -5
----------
+++++
Click here to see answer by ilybam(1)

Question 250914: HI I Need help here is the problem.
11 over 6p + -7 over 4p

Click here to see answer by unlockmath(1688)

Question 250914: HI I Need help here is the problem.
11 over 6p + -7 over 4p

Click here to see answer by Lina77(1)

Question 252824: -1*5+1-6+15-30*-5/3
Click here to see answer by richwmiller(17219)

Question 253016: 1. Mr. Salgado leased a new car for 3 years. He agreed to pay $1,200 down and $269 per month for the duration of the lease. Mr. Salgado also agreed to pay $0.125 per mile for every mile driven over 36,000 miles. When he got the car, the odometer read 0 miles. At the end of the lease, the odometer read 49,272 miles.
What was the total cost to lease the car for three years, excluding any taxes?
1. $9,684
2. $10,884
3. $11,343
4. $12,543
5. $15,384
Click here to see answer by richwmiller(17219)

Question 253130: WHAT IS THE ORDER OF OPERATION FOR ALGEBRA?

Click here to see answer by richwmiller(17219)

Question 253152: This is not acually for this topic, I need help on adding, subtracting, multiplying and dividing positive and negative numbers. How do I do this?
Example; -23- 73=???
Click here to see answer by richwmiller(17219)

Question 253535: what is the answer to this problem? 25+6-15+25-10+14-21
how do I solve this problem. Please set it up for me thank you.
A $100.00 check that is cashed at a rate of $7.00, at what rate did you cash it? (in percentage)
Click here to see answer by Alan3354(69443)

Question 254587: order of operation for (3/4-2/3)+(1/2+1/3)
order of operation for 1/2+(2/3 div by 3/4)-(4/5*5/6)
Click here to see answer by richwmiller(17219)

Question 254913: A man ran 8 miles and walked 6 miles. if he ran 5 mph faster than he walked, and the total time was 2 hours, how fast did he walk?
Click here to see answer by ankor@dixie-net.com(22740)

Question 255482: i'm having problems in algebra , i'm in adv. , 8th grader taking 9th grade algebra classes. i'm having problems with the slope - intercept method. also graphing.
likee these problems :
y = 3x - 2
y = -2x
and y = -3/4x + 6
may you help me please ?
Click here to see answer by richwmiller(17219)

Question 256127: what is the answer to this problem: w+8w+4(w+8)
Click here to see answer by drk(1908)

Question 256218: c(5,2) = 5! / (5-2)! 2!
Click here to see answer by drk(1908)

Question 256272: From 8am to noon the temperature rose 4F. From noon to 4pm it fell 3F. From 4pm to 8pm it fell another 6F. At 8pm the temperature was 72F what was the temperature at 8am?
I NEED HELP FAST, with steps taken
Click here to see answer by vleith(2983)

Question 256935: Please help me understand why the -6 is not multiplied with the value in the parentheses.
wrong:
(8-2)-6
(6)-6=-36
right:
(8-2)-6
6-6=0
Click here to see answer by Fombitz(32388)

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