Question

Please help! This is for geometry honors class

Answer 1

x = 14 (3x+5)° = 47° (10x-7)° = 133°

Step by step:

(3x+5) + (10x-7) = 180

3x + 5 + 10x - 7 = 180

13x - 2 = 180

13x = 182

x = 182/13

x = 14

(3x+5) = ((3*14)+5) = 47°

(10x-7) = ((10*14)-7) = 133°

47° + 133° = 180°

Answer 2

Explanation:

As is it given in the figure that it is a straight angle.

So,

or, (3x+5)°+(10-7)°=180°[Being a straight angle]

or, 3x°+10x°+5°-7°=180°

or, 13x°-2°=180°

or,13x°=180°+2°

or, 13x°=182°

or, x= 182°\13

x=14°

Therefore the value of x in this question is 14°.