last year, mr. harper completed a
50-mile bike race in
4 hours 20 minutes. this year he
would like to complete the same
race in 4 hours. how many miles
per hour should mr. harper cover in
order to complete the bike race in
4 hours?
[d-r]
s
a
14.5 miles per hour
b 13.5 miles per hour
c 12.5 miles per hour
d 11.5 miles per hour

12.5 miles per hour

Step-by-step explanation:

50/4 = 12.5

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

step-by-step explanation: