Answer:
30 is ans do you know hindi
Answer:
44
Step-by-step explanation:
Input 8 into x
f(8)=6(8)-4
f(8)=48-4
f(8)=44
Answer:
1/6
Step-by-step explanation:
Answer:
13 1/3 or 40/3
Step-by-step explanation:
KCF
Keep -5/3 how it is
Change the division sign to a multiply sign
Flip -1/8, meaning make it the reciprocal (-8/1)
Then multiply across, getting 40/3
Lastly, you can change it to mixed for or leave it how it is, depending on the directions.
Answer:
60 mph
Step-by-step explanation:
Given;
Total distance covered d = 440 miles
Average speed in the first 4 hours v1 = 50 mph
Total time taken for the whole trip t = 8:00 to 4:00pm
t = 16:00-8:00 = 8 hours
Firstly we need to calculate the distance covered during the first 4 hours;
d1 = average speed × time = v1 × t1
t1 = 4
d1 = 50 × 4 = 200 miles
Then we need to calculate the distance covered in the second period of the journey;
d = d1 + d2
d2 = d - d1
Substituting the values;
d2 = 440 - 200
d2 = 240 miles
The time taken for the second period of travel t2;
t2 = t -t1 = 8-4
t2 = 4 hours
Average speed = distance travelled ÷ time taken
The average speed for the second part of the trip v2 is;
v2 = d2 ÷ t2
Substituting t2 and d2;
v2 = 240 miles ÷ 4 hours
v2 = 60 mph
The average speed during the second part of the trip is 60 mph
