# Math problems

Do all of these problems in good detail please!

Dan has \$160 to spend on t-shirts and shorts for his new wardrobe. T-shirts cost \$8 a shirt and shorts cost \$16 a piar. Write a inequality and solve.

Next..

Find the value of are so that the line that passes through (-4, 3) and (2, r) has a slope of m= 2/3.

Thats all folks! Thanks

 DrJ Posts: 1,344, Reputation: 1758 Ultra Member #2 Jan 11, 2006, 05:31 PM
yeah got me on the inequality one... I forget how to do that.

And its been a while on graphs but I think are = 6

I don't know how you show your work on that one but I would just graph it out. Start with the first point (-4, 3) follow the slope till the x axis hits 2... Your why axis should be at 6 at that point
 reinsuranc Posts: 97, Reputation: 29 Junior Member #3 Jan 14, 2006, 12:38 PM
Find the value of are
Find the value of are so that the line that passes through (-4, 3) and (2, r) has a slope of m= 2/3.

If (x1,y1) and (x2,y2) are two points, then the slope of the straight line that connects the points equals:
(y2 - y1)/(x2 - x1).

2/3 = (r - 3)/(2 - -4) = (r - 3)/6

12/3 = are - 3

R = 7

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