?roblam)o\v tng 3-'

l, Hrht' kofit -thern6neJ,t wfw ma*-E-or,t/aJk aVyw tl's

Coqf 4 rnttu^", ascllwq:J.et X, rv^",^In, r6Pef*wls

5x > 5or JxA ) (

ir3X

3. l*f x " snr ,\^fVJlxt 15x : srfhirat^A 510 t b}X * P"II5^1SX 7 blor b}x

- lr0Xl5xt5

X

, J4X \rcrml 4 r'ylu*M' tN,{' loq P1g {zv1t twt , r lV l - l - lu- l . r lv r - r tY

tlU,' t(ft= |g ,3q1 - 11559

,llgc,}ttq--lf 5s'r+lts{g

> llSi,lq'1 o1 3tu

- | CIoo* * | boox

?5oo" I1poa.f5004* l?Ouo *t?oo0

bry t 5?o*.50o Srrof

/t -X

+, k* y=V<_ond!,)r$ h,"ry* ' l?'Ex

M<I BX.l&d]l5+5x

_Fx -5y

15>3xb35zx

r l l

b -,M y, atvl rlo-W,"<(ttr,lx = llr

-g Ltrf l70X

LoJa-,(0' ttl,zOt- g}0X

I ll, ?)3r lf 7Qr /-lllpot SvoxtgSox +G^oN

l11, tu+ alanx t t tl f , 3,, r

z.J-ct-u=Oo6W^,Jcrr;J, '" 25,ooo,-r f6oax\^lu , ll,eoo * 15oo x

256ov looox 7 l1, o0o t l Soon

: l l-l ,8zzL 2"3+1*

.zQQO

'2>>&

3

z lb,1

* bor,w15

z j! wwds.

Wq,3lo rzr"\\a+1155

\01J10 r-JIlf01 )l,o

Nb.{z qTqI 'N1.J I yl ta

g';,fl; @ ,

-l l_? tgz\

Class

Solving lnequalities With Variables on Both SidesWrite and solve an inequality for each situation.

1. Rosa has decided to sell pet rocks at an 2,art fair for $5 each. She has paid $50 torent a table at the fair and it costs her$2 to package each rock with a set ofinstructions. For what numbers of saleswill Rosa make a profit?

bx 7 50+2y

X: rta,J ry X_? l?3. Sophia types 75 words per minute and is

just starting to write a term paper. Pattonalready has 510 words written and typesat a speed of 60 words per minute. Forwhat numbers of minutes wil l Soohiahave more words typed than Patton?

. _ /-l5x

4.

Jamie has a job paying $25,000 andexpects to receive a $'1000 raise eachyear. Wei has a job paying $19,000a y€ar and expects a $1500 raise eachyear. For what span of time is Jamiemaking more money than Wei?

2F0oa+,ooox 7 |9,OOO + 1500y

V(lL rww'Keith is racing his little sister Paltieand has given her a 15 foot head start.She runs 5 ft/sec and he is chasing atI ft/sec. For how long can Pattie stayahead of Keith?

l5+5x lBx

Y z 7Ll w$/d'". 5zx : lL S>+ru^dS.

The table below shows the population of four cities in 2004 and the amount ofpopulation change lrom 2003. Use this table to answer questions 5*6.

5. lf the trends in this table continue, afterhow many years ywill the population o{Manchester, NH, be more than the populationof Vallejo, CA? Round your answer to thenearest tenth of a year.

A , y>0 .2 C y>34 .6

( B)y > 6.4 D y> 78.6

6. l f the trends in this table continue,for how long x wil l the populationof Carrollton, TX be less than thepopulation of Lakewood, CO?Round your answer to the nearesl

l1th of a year.

\U *<11 .7 H x<20 .1Gx<14 .6 J x<28 .3

41

City Population{2004}

PopulationChange

(from 2003)

Lakewood, CO 141 , 301 -nan

Valleio" CA 118 ,349 -1155

Carrollton, TX 117,823 - r t t / u

Manchester, NH 109 ,310 +261

Copyright act by Holl, Fineharl and Winston.All r ights reserved. Holt Algehra 1