Answer: 135/8
4-1/2*3-3/4=9/2*15/4
9/2*15/4=18/4*15/4=15*18/4*4
15*18/4*4=270/16=135/8
Thank you for posting your question here at brainly. We find the answer by using mean (or average) when we use mean we add both together and divide by how many numbers we add. So 50 + 40 = 90. 90 / 2 = 45. So 45 is the average speed he traveled at the whole trip. 45 is your answer
Answer:
The answer is 84.08
Step-by-step explanation:
1) line up the decimal points
2) add it up like any addition problem
3) Place the decimal point right under the placement of the decimal point of the problem
1/2=.50 2/5=.40 6/10=.60
2/5,1/2,6/10
No -4/3 can not be simplified
