Answer:
not sure for the 1st one but pretty sure 2nd one is B
Step-by-step explanation:
Answer:
Step-by-step explanation:
x = 0
y = -4 (0) + 3
y = 3
(0,3) is a solution.
x-axis is parallel
Let the boat speed in still water be b.
Let the current speed be c.
The speed going upstream is 20/4 = 5 mph.
The speed going downstream is 32/4 = 8 mph.
b - c = 5 ........(1)
b + c = 8 .......(2)
Adding equations (1) and (2) we get:
2b = 13
b = 13/2 = 6.5
Plugging in the value for b into equation (1) we find c = 1.5.
The boat speed in still water is 6.5 mph and the current speed is 1.5 mph.
Answer:
approximately 550,390,000 km
Step-by-step explanation:
Answer:
-19
Step-by-step explanation:
you first substract 7 from 83 since its the inverse operation
then you divide it by -4 which give you -19