Question and answer
The three Math Idol judges have been eliminating contestants all day! The number of one-step equations and two-step equations who have been eliminated today is equal to 1120. If three times the
number of one-step equations minus twice the number of two-step equations is equal to 1300, how many two-step equations eliminated today? 1300 1120 708 412
"The number of one-step equations and two-step equations who have been eliminated today is equal to 1120" is the same as saying x + y = 1120 (where x is one-step, [ and y is two-step) "three times the number of one-step equations minus twice the number of two-step equations is equal to 1300" is the same as saying 3x - 2y = 1300 If x + y = 1120, then if you subtract y from both sides you get x
= 1120 - y If you substitute this value for x into the other equation (3x - 2y = 1300) you get 3x - 2y = 1300 3(1120 - y) - 2y = 1300 Solve for y 3360 - 3y - 2y = 1300 -5y = -2060 y = 412 Source: If three times the number of one-step equations minus twice the number of two-step equations is equal to 1300, how many two-step equations eliminated today? 1300 1120 708 412 ]
Expert answered|broarnoldmartin|Points 25|
Question
Asked 7/25/2013 1:52:25 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
19,261,767 questions answered
Popular Conversations
Which of the following sentences is written in the passive voice? ...
Weegy: The sentence with the active voice is: The chairman told me that the legislature passed the bill. User: ...
1/31/2015 11:17:44 AM| 2 Answers
How long was George Washington a president?
Weegy: George Washington (February 22, 1732 [O.S. February 11, 1731] ? December 14, 1799) was the first President of ...
1/31/2015 1:03:26 AM| 1 Answers
Weegy Stuff
S
1
L
L
Points 36 [Total 7102]| Ratings 1| Comments 26| Invitations 0|Offline
S
L
P
L
P
Points 36 [Total 6811]| Ratings 0| Comments 36| Invitations 0|Offline
S
Points 4 [Total 69]| Ratings 0| Comments 4| Invitations 0|Online
S
Points 4 [Total 149]| Ratings 0| Comments 4| Invitations 0|Offline
S
L
Points 3 [Total 2124]| Ratings 0| Comments 3| Invitations 0|Offline
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
S
Points 0 [Total 0]| Ratings 0| Comments 0| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.