# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 163175: 1/4 n + 5= 5 1/2 Please solve for n and show all work. Thank you very much for your help! Click here to see answer by checkley77(12569)

 Question 163242: Find two whole numbers with a sum of 15 and a product of 54. Click here to see answer by checkley77(12569)
 Question 163242: Find two whole numbers with a sum of 15 and a product of 54. Click here to see answer by joecbaseball(37)

 Question 163330: A terrorist needs to mix some 2% acid. She has on hand 50 mL of a 1% solution and some 4% solution. How much of the 4% solution should she mix with the 50 mL of 1% solution to obtain the desired 2% solution? I have done this problem but I would like to make sure that it is right. The equation I made out of this word problem is this: .04x+.01(50)=.02(x+50) answer I got was x=25mL Could you please let me know if I did this right? If I didn't please tell me what I am doing wrong? Thanks soooooo much!!!! Click here to see answer by KnightOwlTutor(293)

 Question 163329: Zack has \$1.30 in pennies, nickels, and quarters. He has twice as many nickels as pennies and 7 less quarters than nickels. How many of each coin does Zack have? This is another one of those word problems I am just having such a hard time trying to figure out. Please help!!!! Thanks!!!!! Click here to see answer by ankor@dixie-net.com(15657)

 Question 163328: A flagpole casts a 5ft shadow at the same time a vertical pole 32ft high casts a 2ft long shadow. How tall is the flagpole? I am really having a hard time with word problems. I am really stuck on this one and also another one, but this one is the worst. I would really like to understand how to make an equation out of this. If you could please explain it I would greatly appreciate it!!! Thanks soooooo much!!!!! Click here to see answer by checkley77(12569)

 Question 163407: Trying to help my daughter with Algebra, but it's been a long time since I had Algebra 1. If you can explain the following & refresh my memory please: 15x + 1 = y Click here to see answer by checkley77(12569)

 Question 163422: The Sum of two consecutive even integers is 118 a. Define a variable for the smaller integer. b. What must you add to an even integer to get the next greater even integer? c. Write an expression for the second integer. d. Write and solve an equation to find the two even integers. Click here to see answer by jojo14344(1512)

 Question 163427: how do you solve the following 1/3x = 7/2 2x-6 over 4 = -7 -8 = 4/5k 5/6c - 2/3c = 1/3 -1/6d = -4 thanks for the help Click here to see answer by checkley77(12569)

 Question 163420: The length of a rectangular is one half its length. The perimeter of the rectangle is 54 cm. What are the width and length of the rectangle? Click here to see answer by checkley77(12569)

 Question 163484: You are buying flowers to hand out at a school dance. Roses cost \$30 for a dozen but cost more if bought individually. With the money you have, you can buy 7 dozen and 4 singles roses, or 64 single roses. How much is one rose? How much money do you have? Click here to see answer by KnightOwlTutor(293)

 Question 163525: Please help with solving equation for r : q = rs/(r+s). I tried multiplying by (r+s), but cannot figure out how to get both r's together. Thanks Click here to see answer by checkley77(12569)

 Question 163524: Please help with solving equation for r : q = rs/(r+s). I tried multiplying by (r+s), but cannot figure out how to get both r's together. Thanks Click here to see answer by checkley77(12569)
 Question 163524: Please help with solving equation for r : q = rs/(r+s). I tried multiplying by (r+s), but cannot figure out how to get both r's together. Thanks Click here to see answer by ptaylor(2048)

 Question 163523: Please help with solving equation for r : q = rs/(r+s). I tried multiplying by (r+s), but cannot figure out how to get both r's together. Thanks Click here to see answer by checkley77(12569)

 Question 163573: Please check my work and answer: 9(2c+5)+3c=-75 18c + 45 + 3c = -75 21c + 45 = -75 -45 -45 21c = 120 21 21 c= -5.71 Click here to see answer by checkley77(12569)

 Question 163612: 3. To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one variable that could be used to solve for the constant of variation k. b. A biologist counted the number of white tail deer in a 100 acre parcel of land in a nature preserve and found 12 deer. Find the constant of variation k. c. If the entire nature preserve is 2,500 acres, then what is the total white tail deer population in the preserve? Describe how you arrived at your answer. Click here to see answer by stanbon(57377)

 Question 163631: I have no idea how to approach this equation. It says to simplify the expression. (2x^2-3x+1)(4)(3x+2)^3(3)+(3x+2)^4(4x-3) Click here to see answer by gonzo(654)

 Question 163646: if a pig weighs 20 lbs heavier then a 1/3 of its weight how much does the pig weigh Click here to see answer by gonzo(654)

 Question 163593: 1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C = 6,000/200-2(X) a. What is the cost to remove 75% of the pollutant? b. What is the cost to remove 90 % of the pollutant? c. What is the cost to remove 99% of the pollutant? d. For what value is this equation undefined? Click here to see answer by checkley77(12569)

 Question 163689: Julius sold five times as many compters as Sam sold last year.In total, they sold 78 computers.How many computers did julius sell? Click here to see answer by checkley77(12569)

 Question 163683: seven more than the quotient of a number and 5 is the same as 42 i need to write it as an expression and solve it Click here to see answer by ankor@dixie-net.com(15657)
 Question 163683: seven more than the quotient of a number and 5 is the same as 42 i need to write it as an expression and solve it Click here to see answer by gonzo(654)

 Question 163740: 2x + 5 = -25 please show me the steps to solve this thank you! Click here to see answer by jim_thompson5910(28595)