Pre-Calculus

Have pre-calculus questions? Ask a pre-calculus tutor

Connect one-on-one with {0} who will answer your question

8th grade math 1.A baker has...

8th grade math

1.A baker has a balance scale and 3 different weight . He find he can weigh every whole-number quantity of pounds, between 1 and 13 pounds;, using just his three weights. What are these weights.

2.Solve for x and y:

3/5x=2/3y x+1/3y=12

Explain or show how each is solved

1.A baker has a balance scale and 3 different weight . He find he can weigh every whole-number quantity of pounds, between 1 and 13 pounds;, using just his three weights. What are these weights.

2.Solve for x and y:

3/5x=2/3y x+1/3y=12

Explain or show how each is solved

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a tutorLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Pre-Calculus Questions

I saw you did this about a year ago. Can you help me

I saw you did this about a year ago. Can you help me out...rather quickly? Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p … read more

Do you still have the answers to these 22 questions? it says

Customer: do you still have the answers to these 22 questions? it says they have been removed from media fire by publisher … read more

Show All calculation!!1. Solve the following Expression 5

Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p = 2L +2w 3. Complete the following table X Y -1 0 4 4. Find the Slope-inter… read more

Question 1 Solve the following system of equations using matrices.

Question 1 Solve the following system of equations using matrices. Use Gaussian elimination with back substitution or Gauss-Jordan elimination. x + y + z = 4 x - y - z = 0 x - y + z = 2 A. {(3, 1, 0)}… read more

You must show your work to receive full credit. If you do not

You must show your work to receive full credit. If you do not show your work, you may earn only partial or no credit at the discretion of the professor. MULTIPLE CHOICE. Choose the one alternative tha… read more

Lineal Equations Eliminating by the sustitution method

Lineal Equations Eliminating by the sustitution method 1) x - 2y = - 7 5x + 3y = - 9 2) - 2 y = - 4x + 10 y = - 8x + 6 3) - 3x - 3y + 3 = 0 9x + y - 27 = 0… read more

1. One estimate for the ideal body weight is shown below. Use

1. One estimate for the ideal body weight is shown below. Use this information to answer (a). 47 kg + 1.2 kg for each inch over 5 feet (a) Find a linear model for an estimate of the idea weight of a w… read more

1.What is LM given the following measures and QPST is congruent

1.What is LM given the following measures and QPST is congruent to JKLM? PS=6.3,ST=5.2,TQ=7.4,QP=4.8 2.The area of a triangle is 861 square centimeters.The length of the base is 82 centimeters.What is… read more

I have a few questions for math could you please solve them

I have a few questions for math could you please solve them and show work. 1a. Factor completely 5x^3-500x 1. c 45xy^3-5x^3y 2.a Solve for x (no quadratic formula) 4/77x^2=28 2 [. b (no quadratic form… read more

** FOR GREG ** Hope you are not busy... I will have a few

** FOR GREG ** Hope you are not busy... I will have a few for you tonight. Use the method of substitution to solve the system of linear equations. 6x=3y=6/5 y=5x-1 Answer is an ordered pair, using int… read more

Please help me solve these algebra problems 1. Decide whether

Please help me solve these algebra problems 1. Decide whether or not the ordered pair is a solution of the system a. (4,-5) 3x=-17-y 2x=-23-3y b. (6,1) x+y= -5 x-y= -7 c. (-3,3) x+y=0 x-y=-6 2. Solve … read more

I will tip as usual, more based on the number of problems:

I will tip as usual, more based on the number of problems: Multiply: (9y-7)(81y^2 + 63y + 49) (x+3)(x-5) (3a^2b^4)(4a^2b^2) -12(6x + 2) (7p -1)(49p^2 + 7p +1) (x+3)(x-3) 7ax^5(4ax^4 + 6x^2 +7) (x-3)(9… read more

Solve by the elimination method 1. 5x-y=39 x+y=9 2.

Solve by the elimination method 1. 5x-y=39 x+y=9 2. 5x+6y=19 -5x+y=44 3. 5x+y= -23 7x-3y= -41 4. 9x+y=88 8x+5y=107 5. 3x-7y=21 -5x+4y= -35 6. 2x-6y=0 4x+9y=0 7. -x+ 6y=5 -4x+ 24y=20 8. 24x+12y= -11 16… read more

On an insect collecting project, Lizzy caught Mudwasps, Izzy

On an insect collecting project, Lizzy caught Mudwasps, Izzy caught waterbugs and Dizzy caught flies. It was observed that three times the number of mudwasps that Lizzy caught less 14 was equal to the… read more

2 math problems. Please show work. 1. Solve systems: 3x

2 math problems. Please show work. 1. Solve systems: 3x - 5y = 16 2x + 3y = -2 2. Solve systems: x + z = -3 y - z = 6 2x + 3z = 5… read more

Sandhya, I need your help with some more math problems. I have

Sandhya, I need your help with some more math problems. I have tried to work this out on my own but I neaver can get it. 1). (y-3)(y-7)=0 y= 2). (x-3)(4x+7)=0 x= 3).c^-16=0 c= 4). r^+13r+30=0 r= 5).3d… read more

subsitution method x+y=1 y=x^2-19 2. xy=90 3x-y=-3 3.x+y=3 (x-3)^2+(y-4)^

subsitution method x+y=1 y=x^2-19 2. xy=90 3x-y=-3 3.x+y=3 (x-3)^2+(y-4)^2=10 4.addition method 2x^2+3y^2-30=0 5x^2-4y^2-29=0 write the augmented matrix system of linear equation 3x+y+2z=0 3x-6y-z=2 x… read more

solve the system by subtitiution method1.x^2+y^2=148

solve the system by subtitiution method 1.x^2+y^2=148 x-y=10 2.x-y=1 x^2-xy-y^2=-19 3.solve the system by addition method 2x^2-4y^2=-8 5x^2+3y^2=32 4.solve the system x^2+(y+8)^2=81 x^2-9y=153 5.diffe… read more

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal

...leave nothing to chance.

...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

Los Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

Hesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

Kernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

Woodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

Elkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

Dallas, TX

< Previous | Next >

rajeevanpillai

Master's Degree

323 satisfied customers

B.Sc in Mathematics and M.Sc, M Phil in Statistics

Mr. Gregory White

Master's Degree

167 satisfied customers

M.A., M.S. Education / Educational Administration

mhasan420

Master's Degree

37 satisfied customers

BA Maths, Oxford

JACUSTOMER-yrynbdjl-

Master's Degree

13 satisfied customers

I have taught college Mathematics for the past 10 years.

Dr. Arthur Rubin

Doctoral Degree

12 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

Sandhya_sharma

Master's Degree

1,186 satisfied customers

I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.

Kofi

PhD in Statistics

805 satisfied customers

Masters in Mathematics and Statistics

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.