Answer:
Jeff’s speed is 7 mph
Jon’s speed is 6 mph
Step-by-step explanation:
Since the time spent by each is same, let us call the number of hours x
Mathematically;
Time = distance/speed
Let us call Jeff’s speed y
x = 14/y ••••••(i)
For Jon
he hiked 1 mph slower, so his speed will be (y-1) mph
x = 12/(y-1)
Since x is equal in both cases
14/y = 12/y-1
14(y-1) = 12y
14y -14 = 12y
14y-12y = 14
2y = 14
y = 14/2
y = 7 mph
Jon is 1 mph slower which is 7-1 = 6 mph
Answer:
55
Step-by-step explanation:
35+90=125
180-125=55
The interior angles of a triangle should always add up to 180 degrees
I think it’s C because the smallest number that can be x is 1.
Answer:
y = 2 x = -7
Step-by-step explanation:
2x+5y=-4 2x + 5y = -4 Add both equations
(-x-3y=1)2 -2x - 6y = 2
-y = -2
y = 2
Plug in 2 for y in the equations
-x - 3(2) = 1
-x -6 = 1
-x = 7
x = -7
