# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 465274: Type in the indicated number to fill in this determinant. x+3y=15 4x+2y=25 What is c1? What is a2? What is b1? What is a1? Click here to see answer by MathLover1(6801)
 Question 465274: Type in the indicated number to fill in this determinant. x+3y=15 4x+2y=25 What is c1? What is a2? What is b1? What is a1? Click here to see answer by solver91311(17059)

 Question 465289: Please help me to solve this problem. The demand equation for a manufacturer's product is , 0 ≤ q ≤ 80 , where q is the number of units and p is the price per unit. At what value of q will there be the maximum revenue? What is the maximum revenue? Click here to see answer by richard1234(5390)

 Question 465347: Please answer this question, I hope I didn't make it sound too confusing. Thanks(: The problem says to multiply: Parentheses: (3 + sqrt(3)}}} Multiply by (4 + 3 sqrt(3)}}} OR IN OTHER WORDS: Three plus the SQUARE ROOT of three, times(as in multiply) four plus three ONTO NOT OVER ONTO the SQUARE ROOT of three. NOTE: I SAID ONTO, NOT OVER AS A FRACTION, IT IS THE SAME WITH THE FIRST SET AND THE SECOND SET. THANKS AGAIN!! Click here to see answer by ewatrrr(10682)

 Question 465353: Simplify the variable expression below. 1/9a - 2/3a Click here to see answer by solver91311(17059)
 Question 465353: Simplify the variable expression below. 1/9a - 2/3a Click here to see answer by ewatrrr(10682)

 Question 465617: Find a general form equation for the line through points (-2,-3) and (8,-1) Click here to see answer by ewatrrr(10682)

 Question 465625: teve has 35 coins consisting of dimes and nickels. if the value of the coins is \$3.30, then how many of each type does he have Click here to see answer by ewatrrr(10682)

 Question 465666: a polynomial with a real coeficients that has a complex imaginary sero 2i? Click here to see answer by tinbar(128)
 Question 465666: a polynomial with a real coeficients that has a complex imaginary sero 2i? Click here to see answer by solver91311(17059)

 Question 465688: Hi again, Two more problems write each fraction as a decimal, round to three decimal places 2/3 5/16 Thank you Gina Click here to see answer by rfer(12726)

 Question 465686: Hello everyone Please help my granddaughter with this problem Video games cost \$14.50 each, shipping is flat rate of \$6, you have \$50 to spend, how many games can you buy? Thank you Gina Click here to see answer by jorel1380(2518)

 Question 465739: If my question is 2mk and m equals 3 and k equals 10 would the answer be 60? Click here to see answer by sofiyac(695)

 Question 465670: An online retailer charges \$6.99 plus \$0.55 per pound to ship electronics purchases. How many pounds is a DVD player for which the shipping charge is \$11.94? Click here to see answer by sofiyac(695)

 Question 465742: What would the answer be to this question? 3 to the third power + 2 x 10 to the second power Click here to see answer by sofiyac(695)
 Question 465742: What would the answer be to this question? 3 to the third power + 2 x 10 to the second power Click here to see answer by rfer(12726)

 Question 465772: How do I find the arc length of the minor arc on this problem. I have a given number of 8 and a measure of 110 degrees. Round the answer to two decimal places. Use pi to find your answer. Click here to see answer by kingme18(98)

 Question 465924: Conditional If 2x+3=293, then X = 145 Converse: If x=145, then 2x+3=293 The converse of this conditional is true. The converse of this conditional is false. 2. Conditional: If two angles are complementary, then the sum of their measures is 90. Biconditional: Two angles are complementary angles if and only if the sum of their measures is 90. A. the biconditional is true, the conditional is false B. Both statements are false. c. The conditional is true, the biconditional is false. D. both statements are true. Click here to see answer by jorel1380(2518)

 Question 465557: Please help me to solve this problem. The demand equation for a product is . calculate consumers surplus under market equilibrium which occurs at a price of \$84. Click here to see answer by robertb(4012)

 Question 465944: Two positive numbers differ by 5 and the squares of their sum is 169. Find the numbers. Click here to see answer by sofiyac(695)

 Question 465943: The difference between two numbers is 9 and the product of the numbers is 162. Find the two numbers. Click here to see answer by sofiyac(695)

 Question 465947: A particle is projected from ground level so that its height above the ground after t seconds is given by 20t-5t^2 m. After how many seconds is it 15 m above the ground? Can you explain briefly why there are two possible answers? Click here to see answer by richard1234(5390)

 Question 466095: 0.9 = k over 81 (fraction)... topic:solving division equations Click here to see answer by nerdybill(7003)

 Question 466269: Polygons ABCD and AFGE are similar. AD = 12 and AE = 6. If AF = 7 what is the length of AB? http://4.bp.blogspot.com/-ZrLpKpV4BZE/Tg0VwfZz1PI/AAAAAAAAAAM/cE0AV9wqtG8/s320/IMG_20110630_145004.jpg There is a picture of my problem. Thank you! -Dimitri R. Click here to see answer by robertb(4012)

 Question 466186: the half-life of the radioactive element unobtanium-47 is 5 seconds. If 80 grams of this are initially present, how many grams are present after 5 seconds? Click here to see answer by richard1234(5390)

 Question 1758: I'm taking an algebra class for the first time in years and cannot remember how to solve this:i had got this answer x=6. The answer should be 6 but i can't figure out how to solve. Thanks for any help. Click here to see answer by Scorinitron(19)

 Question 1644: I'm really confused trying to solve this equation. I keep getting different answers. I think the bx is confusing me. 3bx + 9 = 4(3x-b)+2 solve for x Click here to see answer by Scorinitron(19)