CHAPTER 16 / PRACTICE TEST 2 657
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- If 10 less than 2xis 22, then what is the value
of x? - In the figure above, if x= 2 y,then what is the
value of y? - If 8x+ 4 y=20, then what is the value of 2x+y=
- In the xy-plane, the line mx− 3 y=21 passes
through the point (3, 5). What is the value
of m? - The ratio of men to women in a room is 4:5.
If the room contains three more women than
men, how many women are in the room? - If, for some constant value b,the equation
is satisfied by the point (5, 2),
then what is one possible value of b?yxb=− 2- A mixture of water and sucrose is 10% su-
crose by weight. How many grams of pure
sucrose must be added to a 200-gram sample
of this mixture to produce a mixture that is
20% sucrose? - A runner runs a 16-mile race at an average
speed of 8 miles per hour. By how many
minutescan she improve her time in this
race if she trains and increases her average
speed by 25%?
Note:Figure not drawn to scale.- The area of the figure above is 78. What is its
perimeter? - Every sophomore at Hillside High School is re-
quired to study at least one language among
Spanish, French, and Latin, but no one may
study more than two. If 120 sophomores study
Spanish, 80 study French, 75 study Latin, and
50 study two of the three languages, how many
sophomores are there at Hillside High School?
4
12
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x°y°y°
y°STOP
If you finish before time is called, you may
check your work on this section only. Do not
turn to any other section of the test.