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Unformatted text preview: MATH 100
Review on Rational Equations and Word Problems Solve the following equations. List any restrictions and check for extraneous solutions. (1) flx—ffg—z (2) 36:22; X7511.
ax: ¢~Q(x+3) awn: 21x
:11 c 141%» 3Xté=6l><
41:41 =:> Ki” "4’ x a~3
(3) x +3=—2— (4) i=_r_l____3_ at I .
@333, 4ri+§:%:§’(£:3; We
x+ 3x54, 2 a, N0 . W40 :. “213x46
’fx : 8 © x4 “90’wa 72c =' => xs’l
(s) 5 =—3— (6) _3_=;+ 7 I
2x——3 x+5( x—2 x4 x2w3x+2 X=f [1‘1
—' 2 + “l 1 “ , as. .1;ng an,
2 3 2x 35’ : :
Solve for tlfgindicald variable. > X {i
1
(7) Czg(F—ISZ’)“ forF (8) Suicé fora LCD, 3%
qL:b(F¢Jli\l 5:5»353534‘ ’35 ,6. .935, a... ’35:: 4m . a: ’1“ ._
‘5 F: 1c... 61 l @5160 ’36s; 351 3 b 1’ 3
(9) xy2+ngl=xw%—6 forx (10) %+Jl—C=—1 fory LCbl, LOX“
x31”? mil: “é N3 +1 1.5%); UK V
XQjMe ewa‘li'é ijXfDJJ‘ 5M
X": %€E—w& , “X
Solve the followinaword problems. 4" (11) (12) (13) (14) It takes a person the same time to drive 150 miles as it takes a Wane to ﬂy 1350
miles. If the plane is ﬂying 400 mi/h faster than the ear, how fast is each
traveling? It took a woman the same time to drive 150 miles as it takes a train to travel 250 miles. If the train is traveling 20 mi/h faster than the woman is driving, find the
rate at which each is traveling. Wilma can mow the lawn in 3 hours. If Kyle helps her with another mower, the
lawn can be mowed in 2 hours. How long would it take Kyle if he worked alone? Ralph can paint a room in 2 hours, and Joy can paint the same room in 3 hours. If
they work together, how long would it take them to paint the room? i513 , I350 W993 n
359:“ 3 (55;) (H?de ’330r 5 /50r + (4 abs
)01001'1éUJUUCJ 9": 5'0 ...
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This note was uploaded on 04/24/2008 for the course MATH 100 taught by Professor Paterson during the Spring '08 term at LA Tech.
 Spring '08
 Paterson
 Equations

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