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Mathematics 21 Online
OpenStudy (anonymous):

Choose the graph that matches the following system of equations. 4x + 2y = –2 x – 3y = 24

OpenStudy (anonymous):

OpenStudy (anonymous):

the answer i got for this is the third graph

OpenStudy (anonymous):

An airplane flew 5 hours with a 50 mph head wind. The return trip with a tail wind of the same speed took 3 hours. Find the speed of the plane in still air. d = 8(r + 50) d = 5(r + 50) and d = 3(r − 50) d = 5(r − 50) and d = 3(r + 50) None of these systems can be used to solve this problem. I got the 2nd answer for this anyone inform me if im right on both

OpenStudy (zale101):

@shannon342 , how did u got the third one?

OpenStudy (anonymous):

it intercept on 3 and -7 all u do is plug those in

OpenStudy (anonymous):

see if it equals the snwer

OpenStudy (zale101):

you were right about that the intersection is on (3, -7)

OpenStudy (anonymous):

my answer is correct?

OpenStudy (anonymous):

what about the other question am i right about that?

OpenStudy (zale101):

An airplane flew 5 hours with a 50 mph head wind. The return trip with a tail wind of the same speed took 3 hours. Find the speed of the plane in still air. d = 5(r + 50) and d = 3(r - 50)

OpenStudy (zale101):

Distance = Speed * Time

OpenStudy (anonymous):

thsnk you @Zale101

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