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Post by fredfreddy44 on Oct 18, 2018 19:52:53 GMT
I think I figured it out....
Presuming the lines are parallel. You can also presume:
3y = Q = T and I = S = 2y
so
3y + 4x + 7 = 180 and 2y = x + 4
2 equations, 2 unknowns, I get
x = 30.4 and y = 17.2
Later: Yeah I don't see how this is possible because if I plug my answers into another equation I get from the drawing:
2x + 8 = 3y + x, it doesn't equal
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Deleted
Posts: 0
May 7, 2024 2:38:34 GMT
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Post by Deleted on Oct 18, 2018 20:07:47 GMT
I sent this to my daughter and told her to solve it. She gave it to her boyfriend, a math major, and told him to do it.
He , like my husband said it is a waste of time assignment, but will solve it just to see if one of my answers was right.
Once you get x and y , all the other equations are easily answered.
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Post by 950nancy on Oct 19, 2018 2:50:39 GMT
I also think the simplicity of them is a factor. as a non math person I can clearly understand what he's doing. If she's at the point where she's coming to me for help then we're deep in the weeds so finding a simple video is a HUGE deal. My kids was put in advanced math in elementary school and they skipped some major concepts or perhaps went over them too quickly. When my son was studying for his ACTs, he was tearing up the trigonometry problems and had to come to me for help with easy fractions and decimal questions. I was thankful he loved math because it was not my strength as a student. I loved teaching it, but not the advanced stuff for sure.
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seaexplore
Prolific Pea
Posts: 8,411
Apr 25, 2015 23:57:30 GMT
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Post by seaexplore on Oct 19, 2018 4:55:35 GMT
Forgot to take it to my kids....
Have you tried photomath?
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Post by crazy4scraps on Oct 19, 2018 12:52:59 GMT
I was an art student for a reason. That is all I’ve got!
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Deleted
Posts: 0
May 7, 2024 2:38:34 GMT
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Post by Deleted on Oct 19, 2018 13:25:03 GMT
On the sad side:
It is giving students problems like this that make mediocre math students hate math. If this is truly a review lesson , then The teacher should stress how to solve it , rather than actually solving it.
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Post by Darcy Collins on Oct 19, 2018 15:23:14 GMT
I think I figured it out.... Presuming the lines are parallel. You can also presume: 3y = Q = T and I = S = 2y so 3y + 4x + 7 = 180 and 2y = x + 4 2 equations, 2 unknowns, I get x = 30.4 and y = 17.2 Later: Yeah I don't see how this is possible because if I plug my answers into another equation I get from the drawing: 2x + 8 = 3y + x, it doesn't equal I'm pretty sure only the lines with the double arrows are considered parallel. x+4+F+4 = 180 x+3y = F+4 rearranging both equations gives you: x+F=172 x-F+3y=4 Get rid of F 2x+3y=176 Also know that 2x+8=x+3y rearrange to x-3y=-8 add to above equation 3x=168 x=56 y=21.33 You should then be able to go around and find all the other variables. It's one of PITA questions that no student likes whether they're a mediocre math student or a good one.
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Post by jjpeapea on Oct 19, 2018 17:39:49 GMT
Still curious, hope for an update. Cuz I thought x was 56 but then 4x + 7 would be 231. But it shares a line with k so it can't be more than 180.
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LeaP
Pearl Clutcher
Posts: 3,939
Location: Los Angeles, CA where 405 meets 101
Jun 26, 2014 23:17:22 GMT
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Post by LeaP on Oct 19, 2018 22:08:50 GMT
I'm curious too because I think there is an error. If you assume that the lines with arrows are parallel then:
H - 1 = x + 4
therefore on the top horizontal line:
x + H - 1 = 4x + 7 or x + x + 4 = 4x + 7
Solve for x = -1.5 which makes the angles negative.
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Post by fredfreddy44 on Oct 20, 2018 0:27:14 GMT
I'm curious too because I think there is an error. If you assume that the lines with arrows are parallel then: H - 1 = x + 4 therefore on the top horizontal line: x + H - 1 = 4x + 7 or x + x + 4 = 4x + 7 Solve for x = -1.5 which makes the angles negative. I agree something has to be wrongly labeled.
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LeaP
Pearl Clutcher
Posts: 3,939
Location: Los Angeles, CA where 405 meets 101
Jun 26, 2014 23:17:22 GMT
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Post by LeaP on Oct 23, 2018 5:49:18 GMT
I'm bumping because I am curious...
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