Cross multiply
5*27=135
3*x=3x
set equal to one another
3x=135
solve for x
135/3=x
45=x
x=45 minutes
Answer:
23°
Step-by-step explanation:
157° = D
D + C = 180°
157 + C = 180
(group like terms)
C = 180 - 157
C= 23°
Answer:
r= - 5/7
Step-by-step explanation:
Calculate the difference
-7 r = 5
Divide both sides of the equation by -7
r= -5/7
Therefore the solution is r= - 5/7