A cyclist rode 3.75 miles in 0.3 hours. How fast was she going in miles per hour?
At that rate, how long will it take her to go 4.5 miles?

1)speed=12.5 miles/hr

2)time=56.25hr or 0.36hr(i prefer this one..check explanation)

Step-by-step explanation:

speed=distance/time

s=3.75/0.3=12.5

speed is = 12.5 miles/hr

2nd part:

speed=distance/time

so time=speed*distance

: time=12.5*4.5=56.25hr(hard to believe the answer)

or

miles:hours

3.75:0.3

4.5:x

cross multiply

4.5*0.3/3.75=0.36

x=0.36hrs (answer is believeable)

you answer is a

step-by-step explanation:

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints