Question 33781: I THINK I MIISED TYPED THE QUESTION BEFORE
1.JANE PICKED A NUMBER ADDED 3 TO IT MULTIPLIED THE SUM BY 5 THEN SUBTRACTED 8 AND DOUBLED THE RESULT. IF THE ANSWER WAS 44 WHAT NUMBER DID SHE START WITH
2.JUDY RODE HER BIKE 4 BLOCKS EAST 8 BLOCKS SOUTH 9 BLOCKS WESR AND 4 BLOCKS NORTH HOW MANY BLOCKS WEST AND SOUTH OF HER STARTING POINT WAS SHE?
Answer by Nate(3500)   (Show Source):
You can put this solution on YOUR website! 1.JANE PICKED A NUMBER ADDED 3 TO IT MULTIPLIED THE SUM BY 5 THEN SUBTRACTED 8 AND DOUBLED THE RESULT. IF THE ANSWER WAS 44 WHAT NUMBER DID SHE START WITH
2(5(x+3)-8)=44
2(5x+15-8)=44
2(5x+7)=44
10x+14=44
10x=30
x=3 the number is three
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2.JUDY RODE HER BIKE 4 BLOCKS EAST 8 BLOCKS SOUTH 9 BLOCKS WESR AND 4 BLOCKS NORTH HOW MANY BLOCKS WEST AND SOUTH OF HER STARTING POINT WAS SHE?
If you draw the route on a cordinate plane and start the bicycle at the origin, you get the starting point (0,0) and the end point (-5,-4)
distance formula: d = ((y(sub 2)-y(sub 1))+(x(sub 2)-x(sub 1)))^(1/2)
d = ((y(sub 2)-y(sub 1))^2+(x(sub 2)-x(sub 1))^2)^(1/2) use (0,0) and (-5,-4)
d = ((-4-0)^2 + (-5-0)^2)^(1/2)
d = ((-4)^2 + (-5)^2)^(1/2)
d = (16 + 25)^(1/2)
d = (41)^(1/2) is your distance (also named as the square root of 41)
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