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Question 623109: X+y=1
x-2y=4
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Question 623387: secA+tanA= 4, then find sinA
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Question 623409: 252v2+588vg+343g2
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Question 623431: combine like terms : 17a +21a
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Question 623418: 25v2+4-20v
Click here to see answer by unlockmath(1599)

Question 623433: combine like terms : 2 2
12b -8b +6b . The 2 is and exponent over 12b and the other 2 is an exponent over 8b
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Question 623438: 8 person work crew completes a job in 18 hours. What is the fewest number of workers needed to do the same job in 7 hours?
Click here to see answer by ankor@dixie-net.com(15652)

Question 623455: Calulate the following:
12p12
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Question 623439: Full tank with 3 one inch holes drains in 7.2 hours. Same size tank full has 7 one inch holes, how long will it take to drain?
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Question 623461: On a certain project the only grades awarded were 75 and 100.If 85 students completed the project and the average of their grades was 85,how many earned 100?
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Question 623685: Algebra
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Question 623722: the first race was won by two hundred six ten-thousandths seconds.the second race was one by five thousand,three hundred-thousandths seconds.by how much closer was the first race won than the second race?
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Question 623667: -4x/2x=-10
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Question 623859:
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Question 623857:
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Question 623829: how does basic statistics work with english teachers?
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Question 623794: You saw a shirt for $ 97. U didn't have the money to buy it so u borrowed 50 from your mom and 50 from your dad = 100 . You bout the shirt and had $3 change . You gave your mon $1 and your dad $1 and kept a dollar for your self now you owe them each $49 . $49 +49 = 98 + your $1 = $99 . Where's the missing $1
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Question 623955:
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Question 624013: Suppose w varies directly as the square of z. If z decreases by 5%, findtte percentage change in w.
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Question 624064: q=5g+5v
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Question 624066: I need help for my son, please , he have 15 years. My name is Nelly Reyes and alive in Long Beach Ca.
Thank you! And sorry i don't know english.
Click here to see answer by rfer(12660)

Question 624100: Hi! I haven't started the class yet but I still wanna know lots about it for a heads up. So, if you can lets start with (as I like to call it)"the basics". Okay my first one would be x^2-x-x-x=8-4
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Question 624124: square root of 12^2
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Question 624127: how do you solve 2y over 3 - 14 over 15 = y over 5
Click here to see answer by unlockmath(1599)

Question 624128: how do you solve x + 3 over 10 + 2 =7 over 5
Click here to see answer by ikdeep(226)

Question 624079: The average of the six lights was 100 pounds. The average weight of the ten mediums was 140 pounds, and the average weight of the four heavies was 180 pounds. What is the overall average?
Click here to see answer by math-vortex(472)

Question 624231: I need help in math
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Question 624287: Algebra
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Question 624304: jess got 56% in math first term, 89 % seconde term and 80% third term if the first two terms count for 20% each and third term for 60% percent what is her final mark???
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Question 624290: 5x+9-5y=....
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Question 624375: 34-y
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Question 624372:
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Question 624371:
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Question 624370:
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Question 624284:
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Question 624405: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-x-3y=.20
5x+3y=40

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Question 624416: If 12 = r^y then what is the value of 12r ?
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Question 624526:
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Question 624545: lindy guessed six hundred twelve hundred-thousandths and mindy guessed six hundred twelve ten-thousandths.who guessed the most and by how much?
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Question 624578:
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Question 624544: twelve could be purchased for 144$.write the two rates (ratios)implied by this statement.how many could be purchased for $1872
Click here to see answer by nerdybill(6959)

Question 624623: I would like to know the answer to this problem because I have tried it many times and can't seem to check my answer evenly. Thank you.
The Madison Local High School marching band sold gift wrap to earn money for a band trip to Orlando,Florida .The gift wrap in solid colors sold for $4.00 per roll ,and the print gift wrap sold for $6.00 per roll .The total number of rolls sold was 480 ,and the total amount of money collected was $2340. How many rolls of each of each kind of gift wrap were sold?

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Question 624620: 7w-3(4w+8)=11
Click here to see answer by rfer(12660)

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