Sabastian: 1.5 hrs
Sasha : 1.75 hrs
Sasha studies .25 hrs longer (15 minutes)
Y = 7x - 10 . . . (1)
y = -3 . . . (2)
Putting (2) into (1) gives:
-3 = 7x - 10
7x = -3 + 10q = 7
x = 7/7 = 1
Therefore, solution = (1, -3)
Answer:
22.9 or round it up to 23
Step-by-step explanation:
SOHCAHTOA
C=A/H
acos (35/38)
=22.9