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#1101 Re: Help Me ! » Review of Applications of Linear Equations » 2011-06-18 00:29:48
i was wondering if i did the rest of these questions correctly
13. Using the equation from number 12, if the electrician works 3 hours on a job, how much will the bill be?
13- y=30X+45
y=30(3)+45
y=90+45
y=135
14. Using the equation from number 12, if you have a budget of 300.00 dollars for this job, what is the most full hours the electrician can work? Note: You want the largest number of hours without going over your budget
14- 300=30x+45
255=30x
x=17/2
#1102 Re: Help Me ! » Review of Applications of Linear Equations » 2011-06-10 04:48:54
thanx alot 
#1103 Re: Help Me ! » Review of Applications of Linear Equations » 2011-06-10 02:40:35
so is it y=30X+45
#1104 Re: Help Me ! » Review of Applications of Linear Equations » 2011-06-10 01:57:17
y=45(3)+30 is what my answer was my online teacher said it was incorrect help please
#1105 Help Me ! » Review of Applications of Linear Equations » 2011-06-10 01:55:31
- zee-f
- Replies: 13
Hey am doing a review on liner equation i was wondering if somebody can help its in correct i want somebody to help me correct it
12. An electrician charges a 45.00 dollars travel fee plus 30.00 dollars per hour of labor. Let y be the cost in dollars for x hours of work. Write the slope-intercept form of the equation.
12- y=45X+30
#1106 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 22:50:04
i wont
#1107 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:16:22
thanx for all the help
#1108 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:08:41
x = 2005.516129
#1109 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:07:41
140 + -140 = 0
0 + 31x = 62311 + -140
31x = 62311 + -140
62311 + -140 = 62171
31x = 62171
Divide each side by '31'.
x = 2005.
#1110 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:06:39
Add '-140' to each side of the equation.
140 + -140 + 31x = 62311 + -140
#1111 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:04:54
-31x + 31x = 0
140 + 31x = 62311 + 0
140 + 31x = 62311
#1112 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 08:03:51
140 = 62311 + -31x
Add '31x' to each side of the equation.
140 + 31x = 62311 + -31x + 31x
#1113 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 05:41:58
10=-31x+62311
#1114 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 05:36:55
so is it spouse to be 10=-31X-872354
or 140/31=31x-872354
#1115 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 05:17:16
now divide by -31
#1116 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 05:15:51
140=-31x+ 62311/14
#1117 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 05:13:59
#1118 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:47:19
first i need to get the x by its self so ill subtract -31/14 from both sides isn't that correct
#1119 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:38:21
so i need to find x
#1120 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:36:19
y is ganna equal 10
#1121 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:27:44
wow that was simple i was doing something way more complicating
#1122 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:25:50
18. During which year was there 10 computers per student?
18- 10 =-31x\14- 62311\14
Ill get x=-62451\31
#1123 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 04:13:46
17. Find the point-slope form of the equation that goes through these two points.
17- y-k=m(x-h)
y-20=-31\14X- -62031\14
y - 40 = ( - 31 / 14 ) x + (62031 / 14) 20
y=-31\14-62311\14
#1124 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 02:33:42
thanx am working on the problem
#1125 Re: Help Me ! » Point Slope Form of an Equation » 2011-05-29 02:02:33
thank alot am ganna be doing more exercise on this lesson then ill come back to it i thought am spouse to get rid of the 20 i mean thats what i learned and yup am having alot of problems with this lesson