# Questions on Algebra: Equations answered by real tutors!

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 Algebra: Equations Solvers Lessons Answers archive Quiz In Depth

 Question 474608: Instructions: Rewrite without rational exponents, and simplify, if possible. (16x)^5/2 Click here to see answer by Tatiana_Stebko(1326)

 Question 474683: If g(n) = 3n - 2, then what is the value of g(10)? Click here to see answer by MathLover1(6625)

 Question 474722: Please solve these . *WHEN I PUT LOG(3) THAT IS A SUBSCRIPT * LOG(3)5+LOG(3)X=LOG(3)10 LOG(1/7)X=-1 2LN3X+1=5 LOG(3)0.1+2LOG(3)5 LOG(B)9=2 1/4LOG(2)16+1/2LOG(2)49=LOG(2)X 3^N-2=27 2^2N=16^-1 4^3X=10 2^EX-5=1 These are the answer choices : 14 3 -2 2.4630 2 3.2147 7 4 1.0986 0.5537 10 5 Click here to see answer by Alan3354(30993)

 Question 474967: Find the ? Missing terms to make the expression a perfect square. Write the number to fill in the missing number in the equation and the answer to the expression to fill in the paraentheses. w^2-(7)/(3)w+ ?=(?)^2 Click here to see answer by mananth(12270)

 Question 474975: Hi. My name is Hannah. I am going in to 6th grade, and really need help with my math. I am going to be starting really hard equations with algebra next year... Will you help me get over my fear of 6th grade algebra? Thanks so much, Hannah Click here to see answer by mananth(12270)

 Question 475188: PLEASE solve these problems PLEASE !! log(3)5+log(3)x=log(3)10 log(1/7)x=-1 2ln3x+1=5 log(3)0.1+2log(3)x=log(3)2+log(3)5 log(b)9=2 1/4log(2)16+1/2log(2)49=log(2)2x 3^2m=16^-1 4^ex-5=1 THESE ARE THE ANSWER CHOICES : 2 , 5 , 14 , -2 , 3.2147 , 10 , 7 , 1.0986 , 0.5537 , 4 , 2.4630 , 3 Click here to see answer by Alan3354(30993)

 Question 475264: -x+y=5 x-y=10 The solution to the system of equations above is...?... (no calculations necessary) -3x+y=5 -6x+2y=10 The solution to the system of equations above is...?... (no calculations necessary) these are two discussion post my prof. has posted to us. I am confused on what she is asking us to do. Please help. Thank you so much! Click here to see answer by josmiceli(9669)

 Question 475360: could someone please help me, I really need some help with this, Thanks. The summer rainfall amounts for a town are shown in the graph below. The rainfall amounts are shown in inches. What is the total rainfall for the period of time shown? http://www.flickr.com/photos/65803162@N08/5984154321/in/photostream Click here to see answer by jessica.k.2013(2)

 Question 475453: i have a math proublem 2x+3(x-2)=5, after alot of work i get here 5x-6=5 so my question is what could be x? please help i am so confused Click here to see answer by MathLover1(6625)
 Question 475453: i have a math proublem 2x+3(x-2)=5, after alot of work i get here 5x-6=5 so my question is what could be x? please help i am so confused Click here to see answer by Tatiana_Stebko(1326)

 Question 475535: write the indicated expression: at a 25% off everything sale, bill purchased a new shirt. if c represents the original cost, write an expression for the sale price of the shirt. Click here to see answer by stanbon(57303)

 Question 475536: write the indicated expression. you will need to select the variable to use: for two consecutive odd integers, the sum of 3 times the smaller and the larger is 14. Click here to see answer by stanbon(57303)

 Question 475537: Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked: One number is 5 less than 3 times a second number. Their sum is 43. Find the numbers. Click here to see answer by jorel1380(2518)
 Question 475537: Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked: One number is 5 less than 3 times a second number. Their sum is 43. Find the numbers. Click here to see answer by stanbon(57303)

 Question 475530: Select a variable to represent one quantity and state what the variable represents. Express the second quantity in terms of the variable selected: On a 540-mile trip, Cheng and Elsie shared the driving Click here to see answer by stanbon(57303)

 Question 475547: Geometric Problems: When two lines cross, the opposite angles are called vertical angles. Vertical angles have equal measures. Use an equation to determine the measure of the vertical angles if one equals 3x + 38 and the other is 5x + 20. Click here to see answer by stanbon(57303)
 Question 475547: Geometric Problems: When two lines cross, the opposite angles are called vertical angles. Vertical angles have equal measures. Use an equation to determine the measure of the vertical angles if one equals 3x + 38 and the other is 5x + 20. Click here to see answer by MathLover1(6625)

 Question 475553: Money and Mixture Problems: Jerry invested \$7000, part at 8% simple interest and the rest at 5% simple interest for a period of 1 year. If he received a total annual interest of \$476 from both investments, how much did he invest at each rate? Click here to see answer by mananth(12270)

 Question 475546: Geometric Problems: An equilateral triangle is a triangle that has three sides of the same length. The perimeter of an equilateral triangle is 48.6 centimeters. Use an equation to find the length of each side. Click here to see answer by robertb(4012)

 Question 475665: Can you show me step by step on how to solve: (p^2+2p-28) / (p+7) Thank you! Click here to see answer by josmiceli(9669)

 Question 475557: Money and Mixture Problems: Nick has two cans of white paint, one with a 2% yellow pigment and the other with a 5% yellow pigment. He wants to mix the two paints to get paint with a 4% yellow pigment. How much of the 5% yellow pigment paint should be mixed with 0.4 gallon of the 2% yellow pigment paint to get the desired paint? Click here to see answer by lwsshak3(6490)

 Question 475699: Please help me do this question. I am very confused on it. It says you have to make x the subject of this equations: a=1-x/x How do you solve this. Thank you. Click here to see answer by vleith(2825)

 Question 475698: I need help solving this equation where i have to make x the subject: a=1-x/x Note:We need to make x the subject? I do not understand it. Click here to see answer by ewatrrr(10682)

 Question 475757: I need exact and approximate solutions to three decimal places. (x-1)^2=25 x=__ Click here to see answer by Gogonati(809)

 Question 475820: Hi I was wondering if somebody could help me find the equation of a line perpendicular to y=-5x+1 and passing through (-10,3). Click here to see answer by stanbon(57303)

 Question 475551: Geometric Problems: The perimeter of a rectangle is 120 feet. Use an equation to find the length and width of the rectangle if the length is twice the width. Use P = 2W + 2L. Click here to see answer by richard1234(5390)

 Question 476126: Hey, I need help solving 3m^2 + 4m + 1 = 0 by factoring Click here to see answer by MathLover1(6625)

 Question 476117: Walt made an extra \$9000 last year from a part-time job. He invested part of the money at a 9% annual rate of interest, and the rest at an 8% annual rate of interest. At the end of the year, he made a total of \$770 in interest. How much was invested at 8%? Click here to see answer by stanbon(57303)

 Question 476115: On the first day of school, the percentage of boys in a particular class is 60%. During the school year, six girls move away, and are replaced in the class by six boys; this makes the class roster 75% boys. Find the number of boys and girls in the class on the first day of school. Click here to see answer by ankor@dixie-net.com(15648)