# Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Question 32875: Solve the following word problem. Be sure to label the unknowns and to show the equation you use for the solution Yuri has a board that is 98 in. long. He wishes to cut the board into two pieces so that one piece will be 10 in. longer than the other. What should the length of each piece be? Click here to see answer by sarah_adam(201)

 Question 32874: Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16m, one base is 20m, and the area is 224m(squared by 2), find the length of the other base. Click here to see answer by stanbon(60771)
 Question 32874: Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16m, one base is 20m, and the area is 224m(squared by 2), find the length of the other base. Click here to see answer by sarah_adam(201)

 Question 32873: Solve each literal equation for the indicated variable D = C - s (for s) Depreciation n Click here to see answer by stanbon(60771)

 Question 32836: Suppose you travel north for 35 kilometers then travel east 65 kilometers. How far are you from your starting point? Click here to see answer by checkley71(8403)

 Question 32898: If the perimeter of a rectangle is to be no greater than 300 in.,and the length must 125 in. What is the maximum width of the rectangle? Click here to see answer by checkley71(8403)

 Question 32897: What is the base in the statement 50% of 300 is 150? Click here to see answer by ikdeep(226)

 Question 32896: how do I solve 8x - 4 = 7x Click here to see answer by ikdeep(226)

 Question 32919: I have tried to work this problem out several times. 2x+3y=5 x=3y+1 Using substition I have tried 2x+3(1-x)=5 2x+3-3x=5 -3 -3 ________ 2x-3x =2 -1x =2 x=-2 but this solution does not work Click here to see answer by sarah_adam(201)
 Question 32919: I have tried to work this problem out several times. 2x+3y=5 x=3y+1 Using substition I have tried 2x+3(1-x)=5 2x+3-3x=5 -3 -3 ________ 2x-3x =2 -1x =2 x=-2 but this solution does not work Click here to see answer by checkley71(8403)

 Question 32912: An arithmetic student needs an average of 70 or more to receive credit for the course. She scored 82, 64, and 98 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course. Click here to see answer by checkley71(8403)

 Question 32930: Now I have an elimination problem. x+2y=-7 -x+2y=1 I have tried setting it up like this: x+2y=-7 + -x+2y= 1 ----------- and I tried multipling equ 1 4y=-6 by 1 and equ 2 by -2 Click here to see answer by stanbon(60771)

 Question 32913: Identify the rate in the statement " 260 is 52% of 500." A) 500 B) 260 C) 52% Click here to see answer by josmiceli(10616)

 Question 32916: Which label describes the following? 3x + 6 = 10 A) Linear equation B) Equation which is not linear C) Expression Click here to see answer by kietra(57)

 Question 32914: Identify the rate in the statement " 260 is 52% of 500." A) 500 B) 260 C) 52% Click here to see answer by stanbon(60771)

 Question 32939: How do I Find the mean. 1, 6, 10, 11, 12 Click here to see answer by kietra(57)

 Question 32942: What is the solution to 2/5x = -10 Click here to see answer by mohd18(3)

 Question 32941: How do I convert 9/16 to a percent? Click here to see answer by mohd18(3)

 Question 32940: What interest will you pay on a \$7900 loan for 1 year if the interest rate is 11%? Click here to see answer by sarah_adam(201)

 Question 32957: Find the length of each side of the rectangle so that it has the given perimeter Long side 2x - 5 short side x P= 50" Click here to see answer by sarah_adam(201)

 Question 33082: im doing "zero and negaive exponents"... in need to "use the quotient of powers property to simplify the expression." this is the ISBNcode: 0-618-37183-4 19. 5^6/5^3 this is one i did, i dont know if its right ex. m^5/m^11= 1/m^-6= m^5+m^6/m^11= 1 Click here to see answer by wuwei96815(245)

 Question 33081: im doing "zero and negaive exponents"... in need to "use the quotient of powers property to simplify the expression." 1. 5^6/5^3 this is one i did, i dont know if its right ex. m^5/m^11= 1/m^-6= m^5+m^6/m^11= 1 Click here to see answer by wuwei96815(245)