Scott runs 3 km in 30 minutes and then rests for 15 minutes. He then runs 2 km in 15 minutes. What was Scott's average speed?

Step-by-step explanation:

Speed = Distance/Time

If Scott runs 3 km in 30 minutes, his spped during this period is:

Time = 30min = 0.5hr

Speed = 3/0.5

Speed = 6km/hr

If he then runs 2 km in 15  minutes.

Time = 15mins = 0.25hr

His speed at this time = 2/0.25

Speed = 8km/hrr

Average speed = 6+8 = 14km/hr

Note that his speed is zero when he was at rest.

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

1 1/5

step-by-step explanation: