18. It is known that Annie can wash 3 plates every minute, while Betty can wasi plates every minute. Also, it is known that Annie can wash 9 cups every min while Betty can wash 7 cups every minute. If there are a total of 134 dirty pla and and both of them worked together in washing all the dirty plates cups cups and finished in exactly 20 minutes, how many dirty plates are there? (A) 42 (В) 49 (С) 50 (D) 60 (E) 84

18. It is known that Annie can wash 3 plates every minute, while Betty can wasi plates every minute. Also, it is known that Annie can wash 9 cups every min while Betty can wash 7 cups every minute. If there are a total of 134 dirty pla and and both of them worked together in washing all the dirty plates cups cups and finished in exactly 20 minutes, how many dirty plates are there? (A) 42 (В) 49 (С) 50 (D) 60 (E) 84

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

9.) Lois has 1.1 pounds of jelly beans. She wants to make the jelly beans last for 5.5 days. How many pounds of jelly beans should she eat each day in order to make the jelly beans last exactly 5.5 days?
Why did you pick (a,b) to be (1,1)? Can anything be chosen instead of (1,1)? 91,1)?
5. Jes makes 4 pizzas on her own in 20 minutes, whereas Kyle, on his own, makes 4 pizzas in 30 minutes. How long, in minutes, does it take Jes and Kyle to make 20 pizzas when they work together?
Plz answer all parts correctly asap
I only need help on part (c). I was able to figure out part (a) on my own.
Plz answer all parts correctly asap
If n(A) = 64, n(B) = 18, and n(AN B) = 7, find n(A U B).
d,e only Last 2 parts ,plz asap will definitely upvote
If n(A U B)=96 and n(A)=n(B)=66, find n(A n B)