Lucia has run many marathons and keeps track of all of her finishing times. At a race last month, she finished in 180 minutes. At her next race, she finished with a time that was 15%
shorter. What was her finishing time at the most recent race?
minutes
Submit

c. 4 and 1/2 pounds is the answer! : )

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9

step-by-step explanation:

what is the figure? attach a picture.

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°