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| Question 557297:  On three consecutives passes, a football team gains 5 yards, loses 10 yards and gains 45 yards.  What number represents the total net yardage? The answer I got was 5-10+45=50
 - Solve by using the substitution method. 8x+3y=-42 and x=8-7y
 -What is the domain of (p) p(x)=x 2(to the second power) -2x+1
 y=6/5x+5
 Determine if (-1,6)is a solution for 6x-6y=1
 10x--90
 -6+4x<38
 Find the slope for (3,9) and (7-10)
 Find the slope and the y-intercept for f(x) -2x-3
 Solve 7x not equal to 35
 
 
 Answer by stanbon(75887)
      (Show Source): 
You can put this solution on YOUR website! On three consecutives passes, a football team gains 5 yards, loses 10 yards and gains 45 yards. What number represents the total net yardage? The answer I got was 5-10+45=50
 The answer you should have is = 40 yds
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 - Solve by using the substitution method. 8x+3y=-42 and x=8-7y
 Substitute for "x" and solve for "y":
 8(8-7y) + 3y = -42
 64-56y + 3y = -42
 -53y = -106
 y = 2
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 Solve for "x":
 x = 8-7y
 x = 8-7*2 = -6
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 -What is the domain of
 p(x)=x^2-2x+1
 Domain is "All Real Numbers".
 ----
 y= (6/5)x+5
 Domain is "All Real Numbers".
 ----
 Determine if (-1,6) is a solution for 6x-6y=1
 Check: 6*-1-6*6 = 1
 -6-36 = 1
 No, (-1,6) is not a solution.
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 Find the slope for (3,9) and (7-10)
 slope = (9--10)/(3-7) = 19/-4 = -19/4
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 Find the slope and the y-intercept for f(x)=-2x-3
 Slope = -2
 y-intercept = -3
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 Solve 7x not equal to 35
 Divide both sides by 7 to get:
 x # 5
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 Cheers,
 Stan H.
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