Final exaM 455DeMYSTiFieD / algebra DeMYSTiFieD / gibilisco / 000-0 / appendix
A group of students collected change to help feed animals at a shelter.
There was $12.25 of change donated, dimes, nickels, and quarters. There
were 4 more quarters than dimes and twice as many dimes as nickels.
How many nickels were donated?
A. 12 B. 15 C. 18 D. 20
(^43) xx+ 522 − =
A. 0 B. 3
52 xx^2 −
C. 15 3
20 2 8
x
xx
−
−
D. 23 6
20 2 8
x
xx
−
−
If 22 .. 51 xx+= 21 .. 50 − 8 , then
A. x=−^8
3B. x=−^3
2C. x=^16
39D. x=^8
15
A room’s length is 114 times its width. Its perimeter is 90 feet. How wide
is the room?
A. 15 feet B. 20 feet C. 25 feet D. 30 feet
x
x2
2
94
2
6−
()− =^A.^2436 xx+− B. 23 C. ()xx−+^2254 ()3D. (^) − 2
- A large pump can drain a reservoir in 5 hours. If the large pump is used
together with a smaller pump, they can drain the reservoir in 3 hours. How
long would it take for the smaller pump to empty the reservoir by itself?
A. 7.5 minutes B. 6.5 minutes C. 8 minutes D. 7 minutes - 46 ()()xx−+^594365 x−=
A. ()^33 xx−−^56 ()^53 B. ()^15 xx−−^20 ()^653 C. ()^15 xx−−^56 ()^53
D. ()^33 xx−−^20 ()^653- The radius of a circle is decreased by 5 inches, which decreased its area
by 165o in^2. What is the radius of the original circle?
A. 17 inches B. 18 inches C. 19 inches D. 20 inches - What is the solution to 47 x+≤ 31?
A. x≤^192 B. x≤^6 C. x<^192 D. x≥^6