A math teacher gave her class a test that consisted of 30 problems. Some of the problems were worth 4 points each and the rest of the problems were worth 2 points each. If there were a total of 100 points on the test, then how many problems on the test were worth 4 points each and how many problems on the test were worth 2 points each? 16. Let x represent the number of problems on the test that were worth 4 points and let y represent the number of problems on the test that were worth 2 points. Write a system of linear equations. A) x+y=100 2x+4y= 30 A) 18 B) 10 A) 18 B) 17. How many problems on the test were worth 4 points each? x+y=30 4x+2y=100 B) 10 C) 15 C) x+y=30 2x+4y=100 18. How many problems on the test were worth 2 points each? C) 15 D) 12 D) 12 E) 20 E) 20 D) x+y=100 4x+2y=30
A math teacher gave her class a test that consisted of 30 problems. Some of the problems were worth 4 points each and the rest of the problems were worth 2 points each. If there were a total of 100 points on the test, then how many problems on the test were worth 4 points each and how many problems on the test were worth 2 points each? 16. Let x represent the number of problems on the test that were worth 4 points and let y represent the number of problems on the test that were worth 2 points. Write a system of linear equations. A) x+y=100 2x+4y= 30 A) 18 B) 10 A) 18 B) 17. How many problems on the test were worth 4 points each? x+y=30 4x+2y=100 B) 10 C) 15 C) x+y=30 2x+4y=100 18. How many problems on the test were worth 2 points each? C) 15 D) 12 D) 12 E) 20 E) 20 D) x+y=100 4x+2y=30
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,...
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Question
16,17,18
Transcribed Image Text:A math teacher gave her class a test that consisted of 30 problems. Some of the problems were
worth 4 points each and the rest of the problems were worth 2 points each. If there were a total
of 100 points on the test, then how many problems on the test were worth 4 points each and
how many problems on the test were worth 2 points each?
16. Let x represent the number of problems on the test that were worth 4 points and let y
represent the number of problems on the test that were worth 2 points. Write a system of
linear equations.
A)
x+y=100
2x+4y=30
A) 18
B) 10
A) 18
B)
17. How many problems on the test were worth 4 points each?
x+y=30
4x+2y=100
B) 10
C) 15
C)
x+y=30
2x+4y=100
18. How many problems on the test were worth 2 points each?
C) 15
D) 12
D) 12
E) 20
E) 20
D)
x+y=100
4x+2y=30
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