Rodrigo practice play the guitar 15 1/3 hours over the past 3 weeks. he practiced for 6 1/4 hours during the first week and 3 2/3 hours during the second week. how much time did rodrigo spend practicing during the third week? the equation that represents the problem is

a. x + 15 1/3 =6 1/2 + 3 2/3

b. 15 1/3 =x-6 1/4-3 2/3

c. x = 15 1/3 +6 1/2+ 32/3

d. 15 1/3 =6 1/4 +3 2/3 + x

Ineed with number 6 , explain how to get 1978

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet. what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet