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# Recent problems solved by 'Alan3354'

Alan3354 answered: 30973 problems
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 Percentage-and-ratio-word-problems/617594: over a period of 3 and 1/2 years 11/20inch of tire wear off.what is the average wear per year1 solutions Answer 388417 by Alan3354(30993)   on 2012-06-04 09:10:23 (Show Source): You can put this solution on YOUR website!over a period of 3 and 1/2 years 11/20inch of tire wear off.what is the average wear per year ------------ (11/20)/3.5 = 0.55/3.5 =~ 0.15714 in/yr
 Polynomials-and-rational-expressions/617582: what is the volume of a tank if the diameter of the sphere is 30m1 solutions Answer 388416 by Alan3354(30993)   on 2012-06-04 09:08:29 (Show Source): You can put this solution on YOUR website!what is the volume of a tank if the diameter of the sphere is 30m --------------- r = 15 m cubic meters
 Mixture_Word_Problems/617567: Steve needs to put 1 litre of water in a bucket.He has a 500ml jug. Explain how he can measure 1 litre of water.1 solutions Answer 388406 by Alan3354(30993)   on 2012-06-04 07:17:18 (Show Source): You can put this solution on YOUR website!Steve needs to put 1 litre of water in a bucket.He has a 500ml jug. Explain how he can measure 1 litre of water. ---------- 1 liter = 1000 ml
 Travel_Word_Problems/617568: A van travelling 16 MPH, how fast would a SUV be travelling to overtake the van?1 solutions Answer 388405 by Alan3354(30993)   on 2012-06-04 07:16:30 (Show Source): You can put this solution on YOUR website!A van travelling 16 MPH, how fast would a SUV be travelling to overtake the van? ---------- Any speed > 16 mi/hr 17 mi/hr 16.0001 mi/hr 16.000000000001 mi/hr
 Geometry_Word_Problems/617505: Given the surface area of a sphere is 900pi, what is the volume of the sphere?1 solutions Answer 388363 by Alan3354(30993)   on 2012-06-03 21:52:33 (Show Source):
 Geometry_Word_Problems/617506: A sphere has a diameter of 18 meters. Find the volume of the sphere, in cubic meters, in terms of pi.1 solutions Answer 388362 by Alan3354(30993)   on 2012-06-03 21:51:41 (Show Source): You can put this solution on YOUR website!A sphere has a diameter of 18 meters. Find the volume of the sphere, in cubic meters, in terms of pi. ------------------ r = 9 m
 Mixture_Word_Problems/617481: A chemist needs a 130 millimeter of a 57% soulution but has only 33% and 85% soulutions available. Find how many millimeters of each that should be mixed to get the desired soulution. 1 solutions Answer 388349 by Alan3354(30993)   on 2012-06-03 20:40:42 (Show Source): You can put this solution on YOUR website!A chemist needs a 130 millimeter of a 57% soulution but has only 33% and 85% soulutions available. Find how many millimeters of each that should be mixed to get the desired soulution. --------------- Do it like this one: if a 14% acid solution is mixed with a 19% acid solution to produce 45 gallons of a 15% acid solution how much (in gallons) of each solution should be used? -------------- f = 14% n = 19% ---- f + n = 45 (total gallons) 14f + 19n = 15*45 (total acid) ----- n = 45 - f Sub for n 14f + 19*(45-f) = 675 14f + 855 - 19f = 675 -5f = -180 f = 36 gallons of 14% n = 9 gallons of 19%
 Radicals/617483: Can you help me on the problem "sqrZ -10 = 16"? 1 solutions Answer 388348 by Alan3354(30993)   on 2012-06-03 20:39:37 (Show Source): You can put this solution on YOUR website!dup
 test/617484: Can you help me on "sqrZ -10=16?"1 solutions Answer 388347 by Alan3354(30993)   on 2012-06-03 20:39:03 (Show Source): You can put this solution on YOUR website!Can you help me on "sqrZ -10=16?" ----------- z = 676
 Triangles/617439: If s = 7 cm and t = 9 cm, what is the measure of angle ? this is or a right angle1 solutions Answer 388337 by Alan3354(30993)   on 2012-06-03 18:55:42 (Show Source): You can put this solution on YOUR website!If s = 7 cm and t = 9 cm, what is the measure of angle ? this is or a right angle ------------------- Measure of what angle?
 Linear-equations/617454: how do you do this problem? -2j+6=2j-81 solutions Answer 388336 by Alan3354(30993)   on 2012-06-03 18:54:09 (Show Source): You can put this solution on YOUR website!how do you do this problem? -2j+6=2j-8 ------------------------ -2j+6=2j-8 is an equation, not a problem.
 logarithm/617412: 6^log base 6^81 evaluate?1 solutions Answer 388332 by Alan3354(30993)   on 2012-06-03 18:24:33 (Show Source): You can put this solution on YOUR website!6^log base 6^81 evaluate? -------------- I don't know what that means.
 Linear-equations/617415: The slope of a line is 1 and passes through the orgin. What is the equation for the line?1 solutions Answer 388327 by Alan3354(30993)   on 2012-06-03 18:02:18 (Show Source): You can put this solution on YOUR website!The slope of a line is 1 and passes through the orgin. What is the equation for the line? -------- y = x is one x-y = 0 is another y-x = 0 is another 3.2x - 3.2y = 0 is another -------------- There is no "the equation"
 Linear-systems/617417: 3x+y=0 6x+y=3 then graph1 solutions Answer 388326 by Alan3354(30993)   on 2012-06-03 18:00:35 (Show Source): You can put this solution on YOUR website!3x+y=0 6x+y=3 ----------- Subtract then graph
 test/617434: Find the 3 geometric means between 42 and 6721 solutions Answer 388325 by Alan3354(30993)   on 2012-06-03 17:59:32 (Show Source): You can put this solution on YOUR website!Find the 3 geometric means between 42 and 672 --------------- Hint: 672/42 = 16
 Inequalities/617334: how do u solve inequalites?1 solutions Answer 388275 by Alan3354(30993)   on 2012-06-03 14:17:37 (Show Source): You can put this solution on YOUR website!how do u solve inequalites? ------------ Very well. Thx for asking. ============== If you want to solve them, look at some of the 1000s of solved problems on this site.
 logarithm/617245: 2^x=4x solve for x1 solutions Answer 388230 by Alan3354(30993)   on 2012-06-03 02:22:27 (Show Source): You can put this solution on YOUR website!2^x=4x solve for x ---- x =~0.30990603238 x = 4
 test/617192: An aircraft carrier made a trip to Guam and back. The trip there took four hours. It averaged 6km/h on the return trip. Find the average speed of the trip there. 1 solutions Answer 388211 by Alan3354(30993)   on 2012-06-02 22:43:29 (Show Source): You can put this solution on YOUR website!An aircraft carrier made a trip to Guam and back. The trip there took four hours. It averaged 6km/h on the return trip. Find the average speed of the trip there. ----------- Not enough info
 absolute-value/617136: 3/4(x) + 2/5 - x =3/101 solutions Answer 388205 by Alan3354(30993)   on 2012-06-02 21:23:53 (Show Source): You can put this solution on YOUR website!3/4(x) + 2/5 - x =3/10 ---------------- It's it (3/4)x ? or 3/(4x) ? Parentheses around the x don't clarify it.
 Trigonometry-basics/617200: i need help in my trigometry homework how can you solve this,, sketch one cycle of the graph of the sine function y=4sin(1/2)theta. please help me1 solutions Answer 388198 by Alan3354(30993)   on 2012-06-02 20:20:02 (Show Source): You can put this solution on YOUR website!how can you solve this,, sketch one cycle of the graph of the sine function y=4sin(1/2)theta. ----------------- There's nothing to solve. You sketch it. dl the FREE graph software at http://www.padowan.dk ---------- Use Insert Enter 4sin(x/2)
 Geometry_Word_Problems/617120: THe longest runway at an airport has the shape of a rectangle and an area of 1,452,000 square feet. This runway is 120 feet wide. How long isthe runway. What is the length of the runway?1 solutions Answer 388196 by Alan3354(30993)   on 2012-06-02 19:41:21 (Show Source): You can put this solution on YOUR website!THe longest runway at an airport has the shape of a rectangle and an area of 1,452,000 square feet. This runway is 120 feet wide. How long isthe runway. What is the length of the runway? ------------- L = 1452000/120 feet
 Money_Word_Problems/617182: how much will \$10,500 become if it earns 9% per year for 60 years, compoundedd quarterly?1 solutions Answer 388192 by Alan3354(30993)   on 2012-06-02 18:10:28 (Show Source): You can put this solution on YOUR website!how much will \$10,500 become if it earns 9% per year for 60 years, compoundedd quarterly? ----------------- 60 yrs = 240 quarters 9%/year = 2.25% per quarter -->
 Probability-and-statistics/617181: The color of a traffic light found by a randomly arriving car when it is green 40 percent of the time, yellow10 percent of the time, and red 50 percent of the time.1 solutions Answer 388186 by Alan3354(30993)   on 2012-06-02 17:30:18 (Show Source): You can put this solution on YOUR website!The color of a traffic light found by a randomly arriving car when it is green 40 percent of the time, yellow10 percent of the time, and red 50 percent of the time. ------------------ It can be red, green or yellow but a car would not "arrive" unless it's red. If it's green or yellow, they keep moving.
 Mixture_Word_Problems/617147: in what ratio 25% alcohol be mixed wid 50% of alcohol to get a mixture of 40% alcohol strength?1 solutions Answer 388170 by Alan3354(30993)   on 2012-06-02 15:36:40 (Show Source): You can put this solution on YOUR website!in what ratio 25% alcohol be mixed wid 50% of alcohol to get a mixture of 40% alcohol strength? -------------------------- Do it like this one: if a 14% acid solution is mixed with a 19% acid solution to produce 45 gallons of a 15% acid solution how much (in gallons) of each solution should be used? -------------- f = 14% n = 19% ---- f + n = 45 (total gallons) 14f + 19n = 15*45 (total acid) ----- n = 45 - f Sub for n 14f + 19*(45-f) = 675 14f + 855 - 19f = 675 -5f = -180 f = 36 gallons of 14% n = 9 gallons of 19%
 Numbers_Word_Problems/617145: Three sides of a triangle have measures that are consecutive even integers what are the lengths of the sides if the periemeter is 114 meters?1 solutions Answer 388161 by Alan3354(30993)   on 2012-06-02 13:27:23 (Show Source): You can put this solution on YOUR website!Three sides of a triangle have measures that are consecutive even integers what are the lengths of the sides if the periemeter is 114 meters? ------------------ 114/3 = 38 --> 36, 38 & 40
 Geometry_Word_Problems/617119: The longest runway at an airport has the shape of a rectangle and an area of 1,452,000 square feet. This runway is 120 feet wide. How long isthe runway. What is the length of the runway?1 solutions Answer 388156 by Alan3354(30993)   on 2012-06-02 12:21:57 (Show Source): You can put this solution on YOUR website!The longest runway at an airport has the shape of a rectangle and an area of 1,452,000 square feet. This runway is 120 feet wide. How long isthe runway. What is the length of the runway? ----------------- Divide the area by the width.
 Functions/617123: can you give me a step by step example..1 solutions Answer 388154 by Alan3354(30993)   on 2012-06-02 12:21:03 (Show Source): You can put this solution on YOUR website!can you give me a step by step example.. ------------- There are 1000's of solved problems on this site.
 Rectangles/617061: Find the perimeter of the square with the length 6.66 yd1 solutions Answer 388130 by Alan3354(30993)   on 2012-06-02 09:45:02 (Show Source): You can put this solution on YOUR website!Find the perimeter of the square with the length 6.66 yd ---------- If that's the length of a side, P = 4 times that.
 Rational-functions/617073: PLEASE HELP!! I have been working on this and can't get an answer. "A model of the daily profits "p"of a gas station based on the price per gallon "g" is: p=-15000g^2 + 34500g-16800. Use the discriminant to find if the station can profit \$4000 per day. Explain" Thanks so much for the help!! 1 solutions Answer 388129 by Alan3354(30993)   on 2012-06-02 09:43:54 (Show Source): You can put this solution on YOUR website!duplicate
 Money_Word_Problems/617103: If an aircraft is priced at £120 each. How much discount have you received if you pay £900 for 10 years?1 solutions Answer 388128 by Alan3354(30993)   on 2012-06-02 09:39:43 (Show Source): You can put this solution on YOUR website!If an aircraft is priced at £120 each. How much discount have you received if you pay £900 for 10 years? ------------ That's not clear.
 Functions/617100: Determine whether the ordered pair is a solution of the inequality. (7, 20) ; 5y-6x>4 Is the ordered pair a solution of the inequality?1 solutions Answer 388127 by Alan3354(30993)   on 2012-06-02 09:38:37 (Show Source): You can put this solution on YOUR website!Determine whether the ordered pair is a solution of the inequality. (7,20) ; 5y-6x>4 --------------- Sub 7 for x, and 20 for y and see.