The first thing we need to do is combine like terms
6c+14=-5c+4+9c
6c+14=4c+4
-4c -4c
2c+14=4
-14 -14
2c=-10
-- ----
2 2
c=-5
I hope I've helped!
Answer:
![m=15\times 3](https://tex.z-dn.net/?f=m%3D15%5Ctimes%203)
Step-by-step explanation:
Total number of students = 15
Time given to each student to present their item= 3 minutes
So, total time for the show can be calculated as
minutes
40/50 is the ratio because the cos formula is adjacent over hypotenuse and you can reduce it to 4/5 as a fraction :)