Answer:
3,000 = 50(60) + b
2,100 = 50(42) + b
Step-by-step explanation:
i just did it
Answer:
2 hrs
Step-by-step explanation:
Boat moving rate= 11 mph
river's current flow rate= 3 mph
By adding both of them, we get
11 + 3 mph=14 mph
Now,
Time taken= distance travelled/ velocity
= 27/14
= 2 hrs
Answer:
1. 12
2.
a can be a triangle (obtuse)
b can be a triangle (acute)
Step-by-step explanation:
Answer:
Solution → (7, 3)
Step-by-step explanation:
Given system of equations is,
3x - y = 18 -------(1)
y = x - 4 ------- (2)
Substitution method is the best method to solve the given system of equations.
Substitute the value of y from equation (2) to equation (1)
3x - (x - 4) = 18
3x - x + 4 = 18
2x = 18 - 4
2x = 14
x = 7
From equation (2)
y = 7 - 4
y = 3
Solution of the system of equations will be (7, 3).