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January 26, 2015

January 26, 2015

Posted by **willa** on Friday, June 17, 2011 at 7:41pm.

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**willa**, Friday, June 17, 2011 at 7:48pmSolve the system of equations using elimination x+y=13, -x+2y=11 QWhat is the solution, and type an ordered pair.

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**Ms. Sue**, Friday, June 17, 2011 at 7:48pmAssuming the sign is a rectangle --

P = 2L + 2W

128 = 2(W + 6) + 2W

128 = 4W + 12

116 = 4W

29 = W

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**Ms. Sue**, Friday, June 17, 2011 at 7:50pmI don't know how to solve your second problem.

Please click Post a New Question and repost it.

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**willa**, Friday, June 17, 2011 at 8:03pmI need to find an ordered pair and graph x+y =13, -x+2y = 11

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**willa**, Friday, June 17, 2011 at 8:10pmSolve the system of equati(a) symbolically,(b) graphically, and (c) numericallyons6x+2y= 6, -12x +3y = - 12. Find the ordered pair or is it innitely with many solutions or no sultion. i need to graph it also. And also i need to complete the table of values. y = -3x +3, y = 4x -4 and find a odered pair and graph it

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**Ms. Sue**, Friday, June 17, 2011 at 8:18pmI'm sorry you didn't understand my directions above.

**Please click**__Post a New Question__and repost your question.

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**Damon**, Friday, June 17, 2011 at 8:35pmx+y=13, -x+2y=11 QWhat is the solution, and type an ordered pair.

x + y = 13

-x + 2y = 11 add the two equations to eliminate x

------------

0 + 3 y = 24

y = 8

go back and get x

x + 8 = 13

x = 5

(5,8)

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**Damon**, Friday, June 17, 2011 at 8:39pm6x+2y= 6, -12x +3y = - 12. Find the ordered pair or is it innitely with many solutions or no sultion.

-------------------------------

double the first equation

+12 x + 4 y = +12

-12 x + 3 y = -12

------------------

7 y = 0

y = 0

go back and get x

12 x + 0 = 12

x = 1

(1,0)

i need to graph it also. And also i need to complete the table of values. y = -3x +3, y = 4x -4 and find a odered pair and graph it

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**willa**, Friday, June 17, 2011 at 8:40pmA hardware supplier manufactures three kinds of clampos. Types A,B,C. Productionrestrictions force it to make 20 more type C clamps than the total of the othertypes and twice as many type B clamps as type A clampos. the shop must producew 320 clamps per day . How many of each type are made per day. how many type a clamps are produced? How many type B clamps are produced. How nmany type C clamps are produced?

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**Damon**, Friday, June 17, 2011 at 8:43pmy = -3x +3, y = 4x -4 and find a odered pair and graph it

y = -3x + 3

y = +4x - 4 subtract

-------------------

0 - -7 x + 7

7x=7

x = 1

go back for y

y = -3(1) + 3

y = 0

so

(1,0)

To graph these lines look for the x and y axis intercepts

for example for the line

y = -3 x + 3

when x = 0, y = 3 so mark (0,3)

when y = 0, x = 1 so mark (1,0)

draw a straight line through those two points.

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**Damon**, Friday, June 17, 2011 at 8:48pmc = 20 + a + b

b = 2 a

a + b + c = 320

-------------------

-------------------

substitute 2 a for b

c = 20 + a + 2 a = 20 + 3 a

a + 2 a + 20 + 3 a = 320

6 a = 300

a = 50

then b = 100

then c = 20+150 = 170

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**Damon**, Friday, June 17, 2011 at 8:49pmNow please do what Ms. Sue said and post new questions as new math questions, not under your old one. Teachers will miss them here thinking Ms Sue and I have already answered them.

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**Anonymous**, Saturday, June 18, 2011 at 9:11am0.49*7

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**hazel**, Sunday, April 15, 2012 at 4:35pmthe traffic signs are regulated by the manual on uniform traffic signs must be 128 inches. Also length is 10 inches longer than width find the dimensions of this signs

- math -
**hazel**, Sunday, April 15, 2012 at 4:42pmi got the answer 27w

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