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Alan3354 answered: 30973 problems
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Linear-equations/525857: What is the solution for the system of equations? x + 3y = 6 4x + 6y = -6 1 solutions Answer 348232 by Alan3354(30993)   on 2011-11-03 18:17:33 (Show Source): You can put this solution on YOUR website! Divide the 2nd eqn by 2, then subtract.

absolute-value/525858: y=[x]+9 1 solutions Answer 348230 by Alan3354(30993)   on 2011-11-03 18:16:35 (Show Source): You can put this solution on YOUR website! Do you have a question?

Trigonometry-basics/525791: I don't know how to solve this i need to verify the identity? (1+sec(-θ))/(sin(-θ)+tan(-θ))=(1-sec(θ))/(sin(θ)-tan(θ)) 1 solutions Answer 348215 by Alan3354(30993)   on 2011-11-03 16:59:57 (Show Source): You can put this solution on YOUR website! You don't solve it. You determine whether the 2 sides are equal. --------- Change it all to sines and cosines and simplify it.

Graphs/525783: in the equation y = 9x, does y vary directly with x 1 solutions Answer 348211 by Alan3354(30993)   on 2011-11-03 16:50:43 (Show Source): You can put this solution on YOUR website! Yes. When x increases, y increases.

Polynomials-and-rational-expressions/525784: Please help me sove this equation: (n^6)^2 1 solutions Answer 348209 by Alan3354(30993)   on 2011-11-03 16:49:08 (Show Source): You can put this solution on YOUR website! No equation is shown.

Linear-systems/525778: m+n=20 m-n=-4 1 solutions Answer 348205 by Alan3354(30993)   on 2011-11-03 16:39:34 (Show Source): You can put this solution on YOUR website! m+n=20 m-n=-4 --------- Add

Travel_Word_Problems/525774: A post office truck delivered mail on a 9-mile route in 2 hours what was the average rate of speed expressed in MPH? 1 solutions Answer 348202 by Alan3354(30993)   on 2011-11-03 16:38:09 (Show Source): You can put this solution on YOUR website! d = r*t r = d/t

Graphs/525775: What is the slope of (-4,2)(0,5)? Would it be -4/3??? Please help. Thanks 1 solutions Answer 348201 by Alan3354(30993)   on 2011-11-03 16:36:46 (Show Source): You can put this solution on YOUR website! It's the diffy/diffx = (2-5)/(-4-0) = -3/-4 = 3/4

Triangles/525749: Find the value of x, given that the measure of angle 1 is x degrees, the measure of angle 2 is (3x - 6) degrees, and the measure of angle 3 is (2x + 25) degrees. 1 solutions Answer 348199 by Alan3354(30993)   on 2011-11-03 16:08:04 (Show Source): You can put this solution on YOUR website! Not enough info.

Geometry_Word_Problems/525697: Which is a better buy? An 8 inch by 8inch square pizza for $10 or a 9inch round pizza for $10. 1 solutions Answer 348198 by Alan3354(30993)   on 2011-11-03 15:40:06 (Show Source): You can put this solution on YOUR website! They're the same price, so the larger area is a better buy.

Geometry_proofs/525709: how do you determine the answer to a triangle congruent to another angle 1 solutions Answer 348196 by Alan3354(30993)   on 2011-11-03 15:34:55 (Show Source): You can put this solution on YOUR website! The answer depends on the question.

Volume/525722: If the dimensions of a cube with edges that measure 1 centimeter were doubled, what would be the volume of the new cube? 1 solutions Answer 348195 by Alan3354(30993)   on 2011-11-03 15:32:42 (Show Source): You can put this solution on YOUR website! 2*2*2 = 8 cc

Probability-and-statistics/525655: what times what gives you 9810 but adds or subtracts to give you 19 1 solutions Answer 348191 by Alan3354(30993)   on 2011-11-03 14:18:03 (Show Source): You can put this solution on YOUR website! what times what gives you 9810 but adds or subtracts to give you 19 ------------ One number is probably a multiple of 10. =~ 99 --> 90 & 109

Numbers_Word_Problems/525665: what two integers nuber adds up to 87 1 solutions Answer 348190 by Alan3354(30993)   on 2011-11-03 14:10:37 (Show Source): You can put this solution on YOUR website! what two integers nuber adds up to 87 ------------ there are several combos: 1 + 86 2 + 85 3 + 84 etc Also -1 + 88 -2 + 89 etc

Permutations/525671: If a menu lists 6 appetizers, 5 entrees and 6 desserts, how many different meals can you have at this fine restaurant? 1 solutions Answer 348189 by Alan3354(30993)   on 2011-11-03 14:08:57 (Show Source): You can put this solution on YOUR website! If a menu lists 6 appetizers, 5 entrees and 6 desserts, how many different meals can you have at this fine restaurant? ------------ If a meal is 1 of each, it's 6*5*6 = 180

Miscellaneous_Word_Problems/525643: Henry traveled a miles in b hours and then increases his rate by c miles per hour. How long would it take him to travel 1000 miles at the new rate? 1 solutions Answer 348176 by Alan3354(30993)   on 2011-11-03 12:00:32 (Show Source): You can put this solution on YOUR website! Henry traveled a miles in b hours and then increases his rate by c miles per hour. How long would it take him to travel 1000 miles at the new rate? ------------- His rate for the 1st a miles is a/b His new rate is (a/b) + c = (a + bc)/c ---------------- To go 1000 miles t = d/r = 1000/(a+bc)/c = 1000c/(a+bc) hours

test/525620: Find the area of a sector having a radius of 5.92 in. And a central angle of 62.5 degrees 1 solutions Answer 348169 by Alan3354(30993)   on 2011-11-03 11:43:38 (Show Source): You can put this solution on YOUR website! Find the area of a sector having a radius of 5.92 in. And a central angle of 62.5 degrees ------------- The area of the whole circle is The sector's area is (62.5/360) times the area of the circle.

Exponents-negative-and-fractional/525631: Whats does (-7)multiply by (+3)equal to? 1 solutions Answer 348166 by Alan3354(30993)   on 2011-11-03 11:41:14 (Show Source): You can put this solution on YOUR website! -7*3 = -21

Travel_Word_Problems/525634: At 10:00 a.m. two planes leave an airport. If the northbound plane flies at 280 mph and the southbound at 320 mph, at what time will they be 1,000 miles apart? Which equation can be used to solve for t, the time it takes the planes to be 1,000 miles apart? 1 solutions Answer 348165 by Alan3354(30993)   on 2011-11-03 11:40:23 (Show Source): You can put this solution on YOUR website! At 10:00 a.m. two planes leave an airport. If the northbound plane flies at 280 mph and the southbound at 320 mph, at what time will they be 1,000 miles apart? Which equation can be used to solve for t, the time it takes the planes to be 1,000 miles apart? ----------------- Their speeds are added. 280 + 320 = 600 mi/hr ---------- d = r*t t = d/r

Percentage-and-ratio-word-problems/525628: what is 2 4/5 as a percent? 1 solutions Answer 348164 by Alan3354(30993)   on 2011-11-03 11:38:59 (Show Source): You can put this solution on YOUR website! = 2.8 = 280%

Trigonometry-basics/525637: A certain town is at a latitude of 35.2 degrees N. Find the distance in miles from the town to the north pole. 1 solutions Answer 348162 by Alan3354(30993)   on 2011-11-03 11:38:01 (Show Source): You can put this solution on YOUR website! duplicate, just did this one.

Square-cubic-other-roots/525562: What is the square root of 5x-6=3 1 solutions Answer 348149 by Alan3354(30993)   on 2011-11-03 10:05:45 (Show Source): You can put this solution on YOUR website! It's an equation.

Trigonometry-basics/525359: cos(t)=-3/5 where pi Note: Give exact answers, do not use decimal numbers. The answer should be a fraction or an arithmetic expression. If the answer involves a square root it should be enter as sqrt; e.g. the square root of 2 should be written as sqrt(2). 1 solutions Answer 348068 by Alan3354(30993)   on 2011-11-02 20:37:13 (Show Source): You can put this solution on YOUR website! Nothing followed.

Polynomials-and-rational-expressions/525350: what does 6 over 4+2w= negative two over w-10 equal 1 solutions Answer 348059 by Alan3354(30993)   on 2011-11-02 20:27:09 (Show Source): You can put this solution on YOUR website! What does what equal?

Numbers_Word_Problems/525251: The sum of 5 consecutive odd numbers is 70. What are these numbers? 1 solutions Answer 348049 by Alan3354(30993)   on 2011-11-02 19:52:40 (Show Source): You can put this solution on YOUR website! The sum of an odd number (5) of odd numbers will be odd. --> no solution

Percentage-and-ratio-word-problems/525276: what is the quotient for 2/5 divided by 3/5 1 solutions Answer 348048 by Alan3354(30993)   on 2011-11-02 19:51:18 (Show Source): You can put this solution on YOUR website! 2/3

Word_Problems_With_Coins/525274: Penny says 4times65 equals 260. Is it right. Explain 1 solutions Answer 348046 by Alan3354(30993)   on 2011-11-02 19:50:13 (Show Source): You can put this solution on YOUR website! It's right. Nothing to explain.

Quadratic_Equations/525092: 3x(squared)+10x-8 1 solutions Answer 348014 by Alan3354(30993)   on 2011-11-02 16:06:31 (Show Source): You can put this solution on YOUR website! Do you have a question?

Exponents-negative-and-fractional/525071: I don't know how to work out 6a^-2bc/4a^3 1 solutions Answer 348005 by Alan3354(30993)   on 2011-11-02 15:17:47 (Show Source): You can put this solution on YOUR website! I don't know how to work out 6a^-2bc/4a^3 ----------- Multiply NUM and DEN by a^2 = Divide by 2 =

Travel_Word_Problems/525045: Lisa traveled to her cabin on the lake and back. The trip there took five hours and the trip back took six hours. She averaged 45 km/h on the return trip. Find the average speed of the trip there. 1 solutions Answer 348004 by Alan3354(30993)   on 2011-11-02 15:15:49 (Show Source): You can put this solution on YOUR website! Lisa traveled to her cabin on the lake and back. The trip there took five hours and the trip back took six hours. She averaged 45 km/h on the return trip. Find the average speed of the trip there. ------------------ On the trip back, 45 km/hr * 6 hr = 270 km to the cabin. ------------ On the trip there, 270 km/5 hr = 54 km/hr

absolute-value/525060: -10[v+2]=-70 how would i solve this problem [absolute value sign 1 solutions Answer 348003 by Alan3354(30993)   on 2011-11-02 15:12:41 (Show Source): You can put this solution on YOUR website! -10[v+2]=-70 |v+2| = 7 ----------- Case 1: v+2 = 7 v = 5 ------- Case 2: -(v+2) = 7 v = -9