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Linear-systems/510724: Please!!! I keep getting 3 different answers. can you please help me break this down
[7(x+5)-19] - [4(x-6)+10]= 1 solutions
Answer 341863 by Alan3354(30993) on 2011-10-06 17:19:56 (Show Source):
You can put this solution on YOUR website!Not sure what "break it down" means, but I can subtract.
[7(x+5)-19] - [4(x-6)+10]
= 7x+35 - 19 - [4x-24 + 10}
= 7x + 16 - [4x - 14]
= 7x + 16 - 4x + 14
= 3x + 30
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Travel_Word_Problems/510728: If you travel 1460 miles in a vehicle with 8 mpg, how much would gas cost at $5 per gallon?
I tried dividing the 8 mpg into 1460 miles and came up with 182.5. Dividing that by 5 gave me 36.5 and multiplying it gave me 912.5. 1 solutions
Answer 341861 by Alan3354(30993) on 2011-10-06 17:17:17 (Show Source):
You can put this solution on YOUR website!1460 mi/8 mi/gal = 182.5 gallons
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182.5 gal * 5 dollar/gal = $912.50
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If you include the units, you know if you've done the appropriate operation.
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182.5 gal / (5 $/gal) = 36.5 gal^2/$ not sensible units
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Linear-equations/510266: How do I write an equation that crosses the y axis at a lower point than all the given lines
given lines
A) y= 4x+2
B) y= 1/2x-3
c) y= -2x+4 1 solutions
Answer 341767 by Alan3354(30993) on 2011-10-05 20:27:25 (Show Source):
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Angles/510260: if four times the supplement of an angle is added to either times the angles complement, the sum is equivalent to three straight angles. find the measure of the angle that is supplementary to the complement.
4(180-x)+8(90-x)=3(180)
That should be the equation but I've tried to solve it and can't!!
Help! Please and Thank you!!
-Liz 1 solutions
Answer 341766 by Alan3354(30993) on 2011-10-05 20:26:40 (Show Source):
You can put this solution on YOUR website!if four times the supplement of an angle is added to either times the angles complement
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I don't know what that means.
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Equations/510083: Two consecutive odd integers can be modeled by n and n + 2, where n is an odd integer. The sum of two consecutive odd integers is 80. What are the integers? 1 solutions
Answer 341693 by Alan3354(30993) on 2011-10-05 16:56:30 (Show Source):
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Graphs/509885: If I'm given a slope of 4 and a y-intercept of (0, -8) how do I write the line in slope intercept form? 1 solutions
Answer 341641 by Alan3354(30993) on 2011-10-05 11:24:15 (Show Source):
You can put this solution on YOUR website!If I'm given a slope of 4 and a y-intercept of (0, -8) how do I write the line in slope intercept form?
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y = 4x - 8
like that.
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Money_Word_Problems/509842: how much water must be evaporated from 300 ounces of 12% salt solution to obtain a 15% salt solution? 1 solutions
Answer 341639 by Alan3354(30993) on 2011-10-05 10:47:54 (Show Source):
You can put this solution on YOUR website!how much water must be evaporated from 300 ounces of 12% salt solution to obtain a 15% salt solution?
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300*0.12 = 36 oz of salt
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36 oz is 15%, water is 85%
Total solution = 36/0.15 = 240 oz
300 - 240 = 60 oz of water to evaporate.
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