Questions on Algebra: Distributive, associative, commutative properties, FOIL answered by real tutors!

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Question 248225: If 2x+7y=17 and 2x+5y=11, what is the value of 2y?
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Question 248420: use distributive property to write ea. expression as an equivilent expression. then evaluate the expression.
6(80+1)
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Question 248722: 5(p+3)+9=3(p-2)+6
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Question 248851: okay. So i'm very confused and stuck on this problem. i really need help. here is the question:
Diana's average driving speed is 8 miles per hour faster than Damon's. In the same lenth of time it takes Diana to drive 432 miles, Damon only drives 368 miles. for how long did diana and Damon each drive?
Please i need for someone to show the work and explain it to me so that i can understand it thank you!
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Question 249822: how do u add
2.5+1.4x+3.2+5.4X
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Question 249932: Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240 lb mixture that is 10% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of the soy bean meal should be in the mixture?
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Question 249962: Multipy -6/7 x (-4/5)
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Question 249976: Is -5 greater or less than 1?
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Question 249976: Is -5 greater or less than 1?
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Question 249976: Is -5 greater or less than 1?
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Question 249974: Solve using the multiplication principle. Perform the check.
7x = -56.
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Question 249969: Graph the inequality on a plane.
3x + 4y < 12.
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Question 249971: Use the intercepts to graph the equation.
x + 5y = 10.
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Question 249935: Determine whether (-7,-4) is a solution of 6x + 7y = -7.
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Question 249964: Decide whether the pair of lines is parallel, perpendicular, or neither.
4x + 3y = 5
3x - 4y = 10
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Question 249939: What is the y-intercept in y + x = 2?
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Question 249928: Are the lines parallel, perpendicular or neither? 4x + 3y +5 and 3x -4y = 10.
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Question 249975: Solve.
0.9x + 3 < 1.7x -4.
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Question 249975: Solve.
0.9x + 3 < 1.7x -4.
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Question 250043: Find the Domain of the function p(x)=x2 -2x + 7.
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Question 250125: Solve by using the Substitution Method.
5x + 4y = 16.
x = 14 -2y.
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Question 250128: Translate to an algebraic expression.
The product of 26% and some number. (Type the percent as a decimal. Use q to represent some number.
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Question 250131: Solve using the Multiplication Principle. Perform the Check.
-1/2x = -9/10.
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Question 250135: Solve.
8x - (6x + 8) = 4.
x =______.
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Question 250140: Find the Slope and y-intercept.
f(x) = -2x - 8.
The Slope is _____.
The y-intercept is (0,__)
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Question 250142: Evaluate.
r + s/7 for r =51 and s = 12
r + s/7 =______. (Simplify)
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Question 250141: Find the Slope.
(8,6) and (9,-8)
The Slope m =____.
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Question 250133: Solve.
5/2x + 1/4x = 7/4 + x.
The solution set is x =_____/
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Question 250132: The length of a rectangle is fixed at 12cm. What widths will make the perimeter greater than 88cm?
The width must be greater than_____cm.
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Question 250136: Solve for the indicated letter.
e = 5f, for f.
f = _____.
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Question 250130: Graph and find the Slope.
(2,6) (-4,-5)
Find the Slope of the line.
m =____
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Question 250193: Graph the equation.
y = 6.
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Question 250196: Find the Domain of the Function.
g(x)= 1/1-7x
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Question 250194: Amy paid $9.94 for a pair of running shoes during a 20% off sale. What was the regular price? (Round answer to the nearest cent if necessary)
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Question 250191: Collect the Like Terms.
14r + 6s - 11r - 9s.
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Question 250202: On three consecutive passes, a football team gains 9 yards, loses 27 yards, and gains 19 yards. What number represents the total net yardage?
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Question 250203: Solve the compound inequality.
7 > -3x + 6 or 8 < -3x +4.
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Question 250189: Graph the system of inequalities.
y > -3.
x > 5.
Click here to see answer by College Student(505)

Question 250205: Use the intercepts to graph.
x + 2y = 4.
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Question 250197: 25% of what number is 20?
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Question 250192: Solve by the Elimination Method.
7r - 5s = 11.
5r + 7s = 103.
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Question 250954: find the values for which the following is undefined:
3x + 10 (over\fraction)
-----------
X2(squared)+ 8x + 16
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Question 250955: Use the distributive property to simplify each expression.
8(99)
Click here to see answer by richwmiller(9135)

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