In the morning, May drove to an appointment at 50 mph. Her average speed on the return trip in the afternoon was 40 mph. The return trip took hour longer. How far did she travel to the appointment?
Select one:
A. 30 mi
B. 80 mi
C. 2 mi
D. 100 mi

25 miles

Step-by-step explanation:

Let t represent the time she spent in travelling to the appointment. The return trip took 1/8 hour longer.

It means that the time it took her to return is t + 1/8 = t + 0.125

Distance = speed × time

May drove to an appointment at 50 mph. It means that the distance she travelled on her way to the appointment is 50 × t = 50t miles

Her average speed on the return trip in the afternoon was 40 mph. It means that the distance she travelled on her way back is

40(t + 0.125) = 40t + 5

Since the distance travelled is the same, then

50t = 40t + 5

50t - 40t = 5

10t = 5

t = 5/10

t = 0.5 hour

Distance covered in travelling for the appointment is

50 × 0.5 = 25 miles

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950