20) A plane has a speed of 840 km/h in still air. It can travel 3120 km with the wind in the same time it would take to travel 1920 km against the wind. Find the speed of the wind. 21) Cecilia is 24 years younger than Joe. Six years ago she was half as old as he was. How old is each now? 22) Two years ago, Rick's age was 1 year less than twice Barbara's age. Four years from now, Rick will be 8 years more than half Barbara's age in four years. How old is Rick now?

20) A plane has a speed of 840 km/h in still air. It can travel 3120 km with the wind in the same time it would take to travel 1920 km against the wind. Find the speed of the wind. 21) Cecilia is 24 years younger than Joe. Six years ago she was half as old as he was. How old is each now? 22) Two years ago, Rick's age was 1 year less than twice Barbara's age. Four years from now, Rick will be 8 years more than half Barbara's age in four years. How old is Rick now?

Name: please help me with theese three questions!! my teacher is big on work
Uploaded: 2024-03-20T06:47:08.000Z
Channel: Bartleby
Description: please help me with theese three questions!! my teacher is big on work!! helppp!!! 20) A plane has a speed of 840 km/h in still air. It can travel 3120 km with the wind in the same time itwould take to travel 1920 km against the wind. Find the speed

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

See similar textbooks

Similar questions

Can you explain further the breakdown for part c please?
what are the reasons to include omitted variables?
Please Help ASAP!!!!
Has the Hint been considered while answering the questions. Or it does not change or influence the answer.
Can i share my screen and show you a homework problem that I thought I did right but is wrong and I don't know what I've done wrong?
For the following questions, THERE IS NO NEED FOR EXPLANATION. PLEASE PROVIDE JUST THE ANSWER THANK YOU. Please DO NOT waste time on writing things to explain. Please answer in 30 mintues or else I will write a bad review. If you follow my rules and answer in less than 30 mintues then I will write a very long and wonderful review about you. ANSWER the questions correlty and please answer all the questions with what it regards in saying exactly.
Your partner asks you to go to the store to buy 4 bottles of 1.5L soda. The store has 11 kinds of soft drinks (and a large stock of> 4 bottles of each kind). Howmany different possible purchases can you make?
Use either the letters in your surname or numbers in your student id card to explain the difference between “permutations” and “combinations.” Give a real-world example where the distinction between permutations and combinations is crucial. name is Giulia
How did you get the values in the able?
That is the first answer I got and it was also marked as incorrect. I am not sure why. I also tried the rounded version and it didn't work.