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Question 231371: Please help me solve this equation.

the variable expressions represent the angle measures of a triangle.

the measure of Angle A = x

The measure of angle B = 2x

The measure of angle c = 3x

Find the measure of each angle and classify the triangle by its angles.
Click here to see answer by rfer(16322)

Question 231374: Please help me solve this equation.
the variable expressions represent the angle measures of a triangle.

measure of angle a = 3x-17

measure of angle b = x+40

measure of angle c = 2x-5.

Classify what kind of triangle.

I got 27, 67, and 129. What did you get?
Click here to see answer by rfer(16322)

Question 231440: 4(2r+8)=88
Click here to see answer by rapaljer(4671)

Question 231066: please help me slove this question .this is from california geometry book.
: Solve each equation. and how did you slove it ?
1.) 6x - 42 = 4x
2.) 8 - 3n = -2 + 2n

3.) 3(y + 2) = -12 + y

4.) 12 + 7x = x - 18

5) 3x + 4 = 1 dividing by2x -5

6) 2 - 2x = 2 dividing by 3x -2

7)Mark bought 3 CDs and spent $24.
Write and solve an equation for the
average cost of each CD.

...................
please help me out . thank you in advance .

Click here to see answer by ankor@dixie-net.com(22740)

Question 231084: the clarke family went sailing on a lake. their boat averaged 6 kilometers per hour. the rourke family took their outboard runabout for a trip on the lake for the same amount of time. their boat averaged 14 kilometers per hour. the rourke family traveled 20 kilometers farther than the clark family. how many hours did each family spend on their boat trip?
Click here to see answer by ankor@dixie-net.com(22740)

Question 106903: The sum of the ages of the three Romano brothers is 63.if their ages can be represented as consecutive integers,what is the age of the middle brother?
Click here to see answer by monicapanyu(1)

Question 231581: Write an equation:
1. The sum of half of a number and 8 less than the number is 25.
n + (n-8) = 25 (?)
2. A triangle has two sides equal in length and a third side 5 in. longer than half the length of each of the other two sides. If the perimeter of the triangle is 50 in., how long is each side?
2x + (x + 5) = 50 (?)
Click here to see answer by stanbon(75887)

Question 231622: Write an expression with a variable for each situation described below. Then write a phrase telling what the variable represents.
1. Jason had 12 cookies and then ate some.
2. Loretta had 5 books and then bought some more.
3. Hal had 8 pens. He bought 5 more and then gave away some.

Write an expression, then evaluate the expression.
4. Barbara saved d dollars a week from her job for 6 weeks. How much did Barbara save? Evaluate the expression for d = $18.75.
5. Tom had $40 before he went shopping. After he bought some school supplies, he had n left. How much did Tom spend on school supplies? Evaluate the expression for n = $15.
Click here to see answer by rfer(16322)

Question 231666: Find the measure of the interior angles. This is a triangle. Show all work.

measure of angle a = X+30

measure of angle b = 4x

measure of angle c = x+60.

Find the measure of A, B, and C
Click here to see answer by stanbon(75887)

Question 231690: the vector u(arrow above) has a magnitude of 4.3cm and a direction of 45 degrees.find the magnitude of its vertical component.
Click here to see answer by stanbon(75887)

Question 231686: find: int((x^3 + 1),dx)
Click here to see answer by solver91311(24713)

Question 231678: what is the difference between an algebraic expression and an algebraic equation
Click here to see answer by jsmallt9(3758)

Question 231728: What is the square root of 4 reduced?
Click here to see answer by checkley77(12844)

Question 231699: find the value of cos 105 degrees without using a calculator.retain radical notation.
Click here to see answer by solver91311(24713)

Question 231712: evaluate: int(x^4 + 3x^2,dx)
Click here to see answer by solver91311(24713)

Question 231698: change 37.92 degrees to radian measure to the nearest thousandth.
Click here to see answer by Alan3354(69443)

Question 231695: solve sin2x = 3cos x for all values of x.
Click here to see answer by Alan3354(69443)

Question 231858: is 3x+5 and 8x equivalent?

Click here to see answer by stanbon(75887)

Question 231864: The graph of which of following does not lie entirely on or above the x-axis?
A. x=y^2
B. y=x^2
C. y= square root of x
D. y= line x line
Click here to see answer by edjones(8007)

Question 231878: In class we had to figure out how to solve problems bu using solving the sub-problem of that problem. Which is basically just steps to get to figuring out the big picture. In the following problem I wasn't quite sure where to start with that. Here is the problem:
"In right triangle RED, angle R is the right angle. Point O is on segment ER and point A is on segment ED. Segment OA is perpendicular to segment ED. EA = 6, AD = 14, and ER = 16. Find the area of quadrilateral ROAD."
So with the picture you draw with that, do I have to cut the right triangle in half and then solve? I was so confused nor do I know where to start with finding the sub problems. If anyone has a suggestion it would be very helpful. Much appreciated in advance!
Click here to see answer by solver91311(24713)

Question 231880: I'm not sure if this question goes here, but it's about finding the sub-problems and solving them so I hope I have the right section.
Alright so this problem confused me. Basically I was stuck with what the question was saying. I didn't know how to form the picture based off of what the word problem was say. So here is the question:
"There are nine identical-looking coins. One of the coins is counterfeit and weighs less than the other coins. The only scale available is a balance scale, on which you can weigh any number of coins against each other. Using the scale only twice, figure out a way to find the counterfeit coin."
The last sentence to the question was where I was sort of stuck. I'm only allowed to use a scale twice so you would have to find out which coin was the counterfeit by piling on five coins on one end of the scale and then four on the other? I'm not quite sure how to solve this problem and if anyone has a suggestion I was would be very grateful for it!

Click here to see answer by jsmallt9(3758)

Question 231862: For f(x)=15/x^2-1 and g(x) = SQUARE ROOT x+4, find (g degree sign f)(2)
A. square root of 6
B. 5
C. 5 square root of 6
D. 3

Click here to see answer by jsmallt9(3758)

Question 231911: -53 -2x = -x +20
Click here to see answer by checkley77(12844)

Question 232018: Show That The Lines Are Parallel By Showing That Their Slopes Are Equal:
1. f(x)=4x+1 And g(x)=4x
2. f(x)=(1/3)x+5 and g(x)= (1/3)x-2
Click here to see answer by solver91311(24713)

Question 232042: HEELLP!!! here is the equation: 1/x^2-25 - 4/x-5 = 2/x+5 ANYBODY! PLEASE!!
Click here to see answer by stanbon(75887)

Question 231982: A purse contains all of the four types of coins. There are twice as many dimes as nickels. The number of pennies is three less than the number of nickels. There is an equal number of pennies and quarters. The total value of the coins is $3.30. Find the number of each type of coin.
Click here to see answer by Robb(9)

Question 232154: 3+x=x+3
Click here to see answer by rfer(16322)

Question 232141: i have 18=c+5 with aline under the c+5 and a 2 beneath it. how do i solve those problems??

Click here to see answer by solver91311(24713)

Question 232207: how do you solve 7-4c=10c
Click here to see answer by rfer(16322)

Question 232228: how do you solve x+2=3x-1
Click here to see answer by stanbon(75887)

Question 232214: 6(x-3)=x+8
a. x=14/5
b. x=26/5
c. x=13/3
d. x=11/5
I worked this problem, but I am not for sure if I worked it right.
But, I chose Letter "B"
Please help
Click here to see answer by checkley77(12844)

Question 232238: how do u solve 12c-4=12c
Click here to see answer by stanbon(75887)

Question 232243: How long does it take light to travel from the Sun to Venus? I know the distance is 1.03 x 10^8 and the speed of light is 300,000 kilometer per second.
d=rt
1.0 X 10^8 = (3.0 X 10^5)t
1.0 X 10^8 / 3.0 X 10^5
? X 10^3
Click here to see answer by Alan3354(69443)

Question 232264: 2X+15=27+4X
Click here to see answer by rfer(16322)

Question 232357: How do you solve 13+f-8f=25x5

Click here to see answer by sabana(1)

Question 232407: I need help solving a equation problem 6x+14=4x+15 can anyone help I am really struggling with this
Click here to see answer by Alan3354(69443)

Question 232407: I need help solving a equation problem 6x+14=4x+15 can anyone help I am really struggling with this
Click here to see answer by rapaljer(4671)

Question 232402: 1. Structural Analysis � the equation used to find the cross-sectional area of a cylindrical column (area of a circle):A= pie r2
2. Physics � The equation used to find the amount of centripetal force on a mass moving in a circle:F= mv2/r

3. Electronics � The equation used to find the amount of potential energy stored in a charged capacitor: PE=q2/2C
4. Astronomy � The equation used to find the amount of time required for a planet to execute its orbit:T2=4pie2r3/GM
Click here to see answer by Alan3354(69443)

Question 232415: A teacher has to make 159 copies of a review packet for the students in her classes. When she arrives in the workroom she starts using both copy machines(call them X and Y). During the copying, machine X runs out of paper, so it only printed half as many packets as copier Y. How many copies does each machine print?

Click here to see answer by rapaljer(4671)

Question 232430: A mother is 25 years older than her daughter. Five years ago, the daughter was half as old as the mother was then. How old is the daughter now?
Click here to see answer by josmiceli(19441)

Question 232497: How would you figure out this question?
2x+3 - 3 = 2
____ _
x-1 x
I don't know how to write that better...
How would you work this out? This is what I attempted:
x(2x+3) - 3x+3 = 2x^2-2x
______________
x^2-x
What do you do from there or am I wrong?
Thanks,
BrownieGirl7

Click here to see answer by rapaljer(4671)

Question 232515: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hours, how long will it take for both of them to paint the house together?
Click here to see answer by Alan3354(69443)

Question 232573: 2n+3n+7=-41
Click here to see answer by rfer(16322)

Question 232585: A computer repair bill was $225, this included $75 for parts and $50 for each hour of labor. find the number of hours of labor.

Click here to see answer by rfer(16322)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580