HomeworkSec. 1.3 # 16, 29, 40, 48, 71

16.

00355553

55113

bb

b

b I like to get rid of the fractions by multiplying both sides by the LCD.

Then I get all the variables on one sideand all the #’s without variables on theother side and divide by the # is front of the variable.

Don’t forget to check your answer. Didyou use your calculator?

29.

4205

52544255

pppp

pp

These are easy!

40.

21612

15217521715637523

x

xxx

xxxxxx

Your way does not have to look like my way, but we should havethe same answer. Don’t forget to check!

48.

3217

2434334243

21

324

21

xxxx

xx

xxI found the LCD to be 6, then multiplied both sidesby the LCD to eliminate thefractions.

Then I got all the variableson one side and all the #’swithout variables on the otherside and divided by the # infront of the vairable.

71.

Let x = the # hrs. worked at 2nd job.

Total = Hourly ● Hours at + Hourly ● Hours atearnings wage 1st job wage 2nd job

xx

xx

925.625.56

25.675.19325025.62575.7250

You must work 9 hours per week at the second job.