Monday

September 15, 2014

September 15, 2014

Posted by **Mona** on Friday, February 1, 2013 at 12:11pm.

Thanks

- Geometry -8th gr -
**Reiny**, Friday, February 1, 2013 at 2:02pmvery similar to the one I did for you yesterday.

draw the two triangles and fill in the information.

5x + 7y = 75 ---- equation #1

In triangle AC

angle C = 180 - 75 - 2x - 9y

= 105 - 2x - 9y

3x+4y = 105 - 2x - 9y

5x + 13y = 105 --- #2

subtract #2 - #1

6y = 30

y = 5

back into #1

5x + 35 = 75

5x = 40

x=8

so if x=8 and y=5

**angle R = 3x+4y = 24+20 = 44°**

check: 5x + 7y should be 75

5(8) + 7(5) = 75 , yeahhh

- Geometry -8th gr -
**Mona**, Friday, February 1, 2013 at 5:24pmOkay, I get it now:)...thanks.

**Answer this Question**

**Related Questions**

Geometry-8th gr - Can you please help me with this question? 1.) Given: triangle...

Geometry - Please answer at least one . PLEASE 1. Triangle XYZ has a right ...

Math - 1. Find the value of Sin^-1(-1/2) a. -30 degrees b. 30 degrees c. 150 ...

geometry - Given AB is perpendicular to BC <ABO= (2x + y)degrees <OBC= (6x...

geometry - Triangle ABC is a right triangle such that m angle B= 90 degrees. If ...

geometry - For triangle ABC, if A is 52 degrees, B is 88 degrees, and C is 40 ...

Genius Math - Triangle ABC has AC=BC, angle ACB=96 degrees. D is a point in ABC ...

math test review - 18. In triangle ABC, m<C=2m<b,m<A=6m<B. what is ...

mathematics - if AD biscepts angle A in right triangle ABC what is the value of ...

Math - Triangles - An isosceles triangle has an interior angle of 26 degrees. ...