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1
Which of the following correctly solves the system of linear equations shown?
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A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_StudyQuiz5_question1a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (40.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_StudyQuiz5_question1b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (40.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_StudyQuiz5_question1c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (40.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/FOM10_StudyQuiz5_question1d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (39.0K)</a>
2
Elimination is the best method for solving the linear system
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because:
A)…elimination is always the best method for solving linear systems.
B)…the coefficients are too large to solve the system any other way.
C)…neither x nor y are isolated in the equations, and the coefficients of y are multiples of each other.
D)…the graphs of the lines could not easily fit onto a sheet of graph paper.
3
To eliminate the y terms in the system
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you would have to:
A)…add twice the first equation to the second.
B)…subtract twice the second equation from the first.
C)…add the two equations.
D)…subtract the second equation from the first.
4
Solve the system using any method:
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A)(x, y) = (−2, 7)
B)(x, y) = (4, 5)
C)(x, y) = (−2, −7)
D)(x, y) = (5, 4)
5
Solve the system using any method:
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A)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q5_a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q5_b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>
C)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q5_c.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q5_d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>
6
Solve the system using any method:
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A)(x, y) = (2, −1)
B)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q6_b.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
C)(x, y) = (7, −3)
D)<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0070977682/448198/mhr_fom10_Study5_q6_d.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>
7
Gregor drove 860 km in 9 h. Part of the way he drove at 100 km/h; the rest of the way he drove at 80 km/h. How far did he drive at 100 km/h?
A)60 km
B)160 km
C)700 km
D)800 km
8
Kim’s class wants to buy class rings for graduation. The cost of the rings is $500 plus $22 per ring. If they charge $47 per ring, how many rings will Kim’s class need to sell to break even?
A)11 rings
B)12 rings
C)20 rings
D)23 rings
9
Adam is saving for university. He has $10 000, of which some is in a savings account earning 5% per year and the rest is in a GIC earning 7% a year. If Adam earned $554 in interest last year in total, how much was invested in his GIC?
A)$2700
B)$4600
C)$5400
D)$7300
10
Anne is a third as old as her mother. Ten years from now, Anne will be half as old as her mother. How old is Anne now?
A)40 years old
B)30 years old
C)20 years old
D)10 years old





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