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Tutors Answer Your Questions about Signed-numbers (FREE)
Question 154851: jocelyn wants to estimate the cost per ounce of a 9.8 ounce jar of gravy that costs $2.75.
what would be a good estimate?
explain how you make thsi estimate.: jocelyn wants to estimate the cost per ounce of a 9.8 ounce jar of gravy that costs $2.75.
what would be a good estimate?
explain how you make thsi estimate.
Click here to see answer by stanbon(18045)  |
Question 73457: I am trying to go back to college after 18 years. I am struggling with math. Would you please show how this problem is worked? Solve and write the solution as an interval. 2-x: I am trying to go back to college after 18 years. I am struggling with math. Would you please show how this problem is worked? Solve and write the solution as an interval. 2-x
Click here to see answer by Alan3354(566) |
Question 153437This question is from textbook Algebra 1
: Insert grouping symbols in the expression 2*3^3+4 to produce the indicated values: 4374 & 279,936. We figured out two of the other ones, but dont know what to do with these two.This question is from textbook Algebra 1
: Insert grouping symbols in the expression 2*3^3+4 to produce the indicated values: 4374 & 279,936. We figured out two of the other ones, but dont know what to do with these two.
Click here to see answer by Edwin McCravy(1816) |
Question 153221: what is the perimeter of a rectangle with length of 7 and width of w?: what is the perimeter of a rectangle with length of 7 and width of w?
Click here to see answer by Alan3354(566) |
Question 142681: why it is necessary to reverse the inequality symbol when multiplying both sides of an inequality?
what are the basic steps involved in problem-solving and what is the importance of following these problem solving steps when presented with a problem?: why it is necessary to reverse the inequality symbol when multiplying both sides of an inequality?
what are the basic steps involved in problem-solving and what is the importance of following these problem solving steps when presented with a problem?
Click here to see answer by mangopeeler07(429) |
Question 147226This question is from textbook INTERMEDIATE ALGEBRA
: Different-sized reantal trucks cost $19.99,$29.99,or $39.99 plus $0.10 per mile. Equations are for the total erntal cost,C, in dollars, for x miles driven.
(it says en Exerises 21-26, write the equations and tell whether the graphs would be parallel lines.)This question is from textbook INTERMEDIATE ALGEBRA
: Different-sized reantal trucks cost $19.99,$29.99,or $39.99 plus $0.10 per mile. Equations are for the total erntal cost,C, in dollars, for x miles driven.
(it says en Exerises 21-26, write the equations and tell whether the graphs would be parallel lines.)
Click here to see answer by nerdybill(465) |
Question 146374: I'm really not sure what to ask so I'll try and describe the problem. The problem is 54-6 divided by 2+6=? and the answers or A. 6, B. 24, C. 27 D. 30 E. 57. I couldn't find my divided by sign on my keyboard so I just wrote it out. I'm not really sure what type of problem it is a Numerical Skills/Prealgebra problem from a study guide I have.: I'm really not sure what to ask so I'll try and describe the problem. The problem is 54-6 divided by 2+6=? and the answers or A. 6, B. 24, C. 27 D. 30 E. 57. I couldn't find my divided by sign on my keyboard so I just wrote it out. I'm not really sure what type of problem it is a Numerical Skills/Prealgebra problem from a study guide I have.
Click here to see answer by stanbon(18045) |
Question 144982: I am having trouble with this Problem
X+8
________
X^2+4X-5
Determine the values of x where the expression is defined.: I am having trouble with this Problem
X+8
________
X^2+4X-5
Determine the values of x where the expression is defined.
Click here to see answer by vleith(967) |
Question 144982: I am having trouble with this Problem
X+8
________
X^2+4X-5
Determine the values of x where the expression is defined.: I am having trouble with this Problem
X+8
________
X^2+4X-5
Determine the values of x where the expression is defined.
Click here to see answer by stanbon(18045) |
Question 144697: Explain why the rules of multiplication hold:
-(-) = +
+(+)=+
-(+)=-
+(-)=-
: Explain why the rules of multiplication hold:
-(-) = +
+(+)=+
-(+)=-
+(-)=-
Click here to see answer by solver91311(1828) |
Question 144608This question is from textbook Mathematics All Around
: Using a calculator. TI-83Plus.
Okay i have had a brain lapse and this is a dumb question but I cannot get the same answers that i did previously had using the same calculator(TI-83 Plus) with the same problem's. I am not calculator savy and this was several chapters back. So I am in a review process for the final.
Plugging in the same numbers into my calculator i do not even come close to answers I had on the problems. Yikes Can someone help me understand what i am now doing wrong?
I've entered them numerous ways and still do not come even close witih the answers that were marked correct on the chapter test.
The problem:
Solve using the formula for the future value of the annuity at the end of the incidicted time period. The amount, frequency of deposits, annual interest, and the time period are given. amount: $200:quarterly: 8%; 9 years. Here is the formula with correct answer of 10,398.87 which was graded on test.
r/n= .08/4 = 4*9=36
Here is how i have it written out on my paper.
A=200 (( 1 + .08/12)^36 -1 /.08/12) = 10,398.87
What am i doing wrong or is my calculator on the fritz?
I entered
200 Parenthesis, Parenthesis 1 + 0.08 parenthesis ^ 36 divided by 12 divided by .08 divided by 12 -1 parenthesis. and I get 77.22520552. Which is no where near 10,398.87. I must have done something different or was it just luck?
Please help me because none of my answers i am calculating today are coming up correct using the (( signs.
If you can help I would extremely be grateful. Thank you.
This question is from textbook Mathematics All Around
: Using a calculator. TI-83Plus.
Okay i have had a brain lapse and this is a dumb question but I cannot get the same answers that i did previously had using the same calculator(TI-83 Plus) with the same problem's. I am not calculator savy and this was several chapters back. So I am in a review process for the final.
Plugging in the same numbers into my calculator i do not even come close to answers I had on the problems. Yikes Can someone help me understand what i am now doing wrong?
I've entered them numerous ways and still do not come even close witih the answers that were marked correct on the chapter test.
The problem:
Solve using the formula for the future value of the annuity at the end of the incidicted time period. The amount, frequency of deposits, annual interest, and the time period are given. amount: $200:quarterly: 8%; 9 years. Here is the formula with correct answer of 10,398.87 which was graded on test.
r/n= .08/4 = 4*9=36
Here is how i have it written out on my paper.
A=200 (( 1 + .08/12)^36 -1 /.08/12) = 10,398.87
What am i doing wrong or is my calculator on the fritz?
I entered
200 Parenthesis, Parenthesis 1 + 0.08 parenthesis ^ 36 divided by 12 divided by .08 divided by 12 -1 parenthesis. and I get 77.22520552. Which is no where near 10,398.87. I must have done something different or was it just luck?
Please help me because none of my answers i am calculating today are coming up correct using the (( signs.
If you can help I would extremely be grateful. Thank you.
Click here to see answer by stanbon(18045) |
Question 140299: I do not understand this?
Express 50(ten) in binary, trinary and base 4.
thankyou Danielle: I do not understand this?
Express 50(ten) in binary, trinary and base 4.
thankyou Danielle
Click here to see answer by scott8148(2486) |
Question 136055:
(BASIC OPERATIONS WITH FRACTIONS)
How many yards of material from a 24-yard length of cloth remain after 3 pieces, each 3 1/2 yards long, and 5 pieces, each of 2 1/4 yards long are removed?
Ans I trieed to do is * the 24 yard to 3 pieces but did not get the answer
ANS OF THIS PROBLEM IS 2 1/4
:
(BASIC OPERATIONS WITH FRACTIONS)
How many yards of material from a 24-yard length of cloth remain after 3 pieces, each 3 1/2 yards long, and 5 pieces, each of 2 1/4 yards long are removed?
Ans I trieed to do is * the 24 yard to 3 pieces but did not get the answer
ANS OF THIS PROBLEM IS 2 1/4
Click here to see answer by checkley77(1747) |
Question 134748: Hello :)
I am working on a worksheet and I really need help with problems such as the following:
Directions:- Use the DISTRIBUTIVE PROPERTY to rewrite the expressions.
13. 9(8 + 7)
14. 11(10 + 5)
16. 16(z + 3)
These are the 3 problems that I really need help with using the Distributive Property.
Please email me back ASAP & Thanks A Lot !! :)
: Hello :)
I am working on a worksheet and I really need help with problems such as the following:
Directions:- Use the DISTRIBUTIVE PROPERTY to rewrite the expressions.
13. 9(8 + 7)
14. 11(10 + 5)
16. 16(z + 3)
These are the 3 problems that I really need help with using the Distributive Property.
Please email me back ASAP & Thanks A Lot !! :)
Click here to see answer by stanbon(18045) |
Question 106180: I tried to solve this problem in many ways, please help
problem (2.2^2)^3 =
my answer 2.2=4
(4^2)=16
16^3=4096
then
(2.2^2)^3
(4.2)
(8)^3
512
: I tried to solve this problem in many ways, please help
problem (2.2^2)^3 =
my answer 2.2=4
(4^2)=16
16^3=4096
then
(2.2^2)^3
(4.2)
(8)^3
512
Click here to see answer by checkley71(8405) |
Question 119413: I please need help on ways to remember how to multiply, subtract, add, divide negative and positive numbers. Please, ive tried all the ways ive been taught.
Thank you a lot: I please need help on ways to remember how to multiply, subtract, add, divide negative and positive numbers. Please, ive tried all the ways ive been taught.
Thank you a lot
Click here to see answer by apachemexican1(55) |
Question 109894: I have a problem I would like to get your opinion on for my answer.
Here it is: Evaluate each of the expressions if a=-2, b=5, c=-4, d=6 So here is the problem: b(with a sq rt of 2) - 2bc + c (with a sq. rt of 2)
My answer is this 5(5)- 2(5)(-4)+(-4 sq. rt of 2) am I on the right track here for my answer.
I am sorry I could not place the sq.rt of 2 with the first letter "b" and the last letter "c" I could not figure out on this web page how to do that. I appreciate your help on this for me.
Thank you, Barb Neely: I have a problem I would like to get your opinion on for my answer.
Here it is: Evaluate each of the expressions if a=-2, b=5, c=-4, d=6 So here is the problem: b(with a sq rt of 2) - 2bc + c (with a sq. rt of 2)
My answer is this 5(5)- 2(5)(-4)+(-4 sq. rt of 2) am I on the right track here for my answer.
I am sorry I could not place the sq.rt of 2 with the first letter "b" and the last letter "c" I could not figure out on this web page how to do that. I appreciate your help on this for me.
Thank you, Barb Neely
Click here to see answer by JessicaGill(39) |
Question 124728This question is from textbook 
: Decide whether each is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
(a) 5x + 8 - 4x + 7 (b) -6y + 12 + 7y -5 =
(c) 5x +8 - 4x = 7 (d) -6y + 12 + 7y = -5This question is from textbook
: Decide whether each is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
(a) 5x + 8 - 4x + 7 (b) -6y + 12 + 7y -5 =
(c) 5x +8 - 4x = 7 (d) -6y + 12 + 7y = -5
Click here to see answer by dolly(163) |
Question 115942This question is from textbook Intermediate algebra
: I am stuck on evaluate an algebraic expression on a self check problem; If r= 2, s=-5,and t=3, evaluate: from the book Intermediate Algebra by alan S. Tussy and R.David Gutafson, Thomson/Brooks/cole. Chapter 1 page 30 a review on basic algebra. I try following the example 12, but the approach is different. Could you help me. Thanks Harold(Harry)Nunez This question is from textbook Intermediate algebra
: I am stuck on evaluate an algebraic expression on a self check problem; If r= 2, s=-5,and t=3, evaluate: from the book Intermediate Algebra by alan S. Tussy and R.David Gutafson, Thomson/Brooks/cole. Chapter 1 page 30 a review on basic algebra. I try following the example 12, but the approach is different. Could you help me. Thanks Harold(Harry)Nunez
Click here to see answer by solver91311(1828) |
Question 120827: When two negative numbers are multiplied the answer is postive. For example,
(-a x -b)=ab. What is the best conceptual explanation for this? The rule says a negative multiplied by a negative is a postive. What is the best way to explain why this rule is true?
I am stumped on the explanation. Thanks.
Kenneth: When two negative numbers are multiplied the answer is postive. For example,
(-a x -b)=ab. What is the best conceptual explanation for this? The rule says a negative multiplied by a negative is a postive. What is the best way to explain why this rule is true?
I am stumped on the explanation. Thanks.
Kenneth
Click here to see answer by solver91311(1828) |
Question 106893: 1. 72 is what percent of 90?
2. find 10% of 240?
3. 90 is what percent of 360?
4. find 8% of 120?
: 1. 72 is what percent of 90?
2. find 10% of 240?
3. 90 is what percent of 360?
4. find 8% of 120?
Click here to see answer by HyperBrain(501) |
Question 119912This question is from textbook
: -9 + 18/-3(-6)
______________
32- 4(12)/3(2)
I do not know what I am doing wrong on the bottom part. I have the answer to the top.
I am new to algebra.
I need to see the steps so I may understand the process and learn what I did incorrectly.
Thank YouThis question is from textbook
: -9 + 18/-3(-6)
______________
32- 4(12)/3(2)
I do not know what I am doing wrong on the bottom part. I have the answer to the top.
I am new to algebra.
I need to see the steps so I may understand the process and learn what I did incorrectly.
Thank You
Click here to see answer by Earlsdon(3516) |
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