Write an equation of a line in slope-intercept form with the given slope and y-intercept. slope: -2, y-intercept: 7

y=-2x+7

Step-by-step explanation:

The formula for this is y=mx+b

the m is the slope, and the b is the intercept, just plug them both in to make it work.

three-fourths of an hour

36÷48=0.75

0.75=

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.