Answer:
its the secong one trust
Step-by-step explanation:
its cause my butt told me lol not but sireosly its the second one if you need to explain them you are screwed gurllllll lol
Answer:
see below
Step-by-step explanation:
Answer:
Rate of Bill's boat = 14 miles per hour
Speed of the current = 2 miles per hour
Step-by-step explanation:
Let x = the rate of the boat in still water and y = the rate of the current.
Distance traveled = 24 miles
Time taken for upstream motion = 2 hour
Time taken for downstream motion = 1.5 hour
Velocity of upstream motion = x - y
Velocity of downstream motion = x + y
We have
Displacement = Time x Velocity
Upstream motion
24 = 2(x-y)
x - y = 12 ----------------------------eqn 1
Downstream motion
24 = 1.5(x+y)
x + y = 16 ----------------------------eqn 2
eqn 1 + eqn 2
2 x = 28
x = 14 miles per hour
Substituting in eqn 2
14 + y = 16
y = 2 miles per hour
Rate of Bill's boat = 14 miles per hour
Speed of the current = 2 miles per hour
-10 and 10 are both integers.
Any whole number, without any fraction or decimal part,
is an integer.
Answer:
Step-by-step explanation:
2x-6y=2
....(1)
-4x+8y=-8....(2)
divid the equation (2) by : - 2 x +4y = - 4...(3)
add (1) and (3 ) :2x-6y - 2 x +4y =2-4
-2y=-2
y = 1
put y=1 in (1) : 2x-6(1)=2
2x=8
x =4
