Download - Notes Over 1.4 Do you feel like it’s hard getting everything working together? Well start focusing on one thing at a time

Notes Over 1.4

Do you feel like it’s hard getting everything

working together?

Well start focusing on one thing at a time.

5 202 1 xxxy ;.

Notes Over 1.4Calculating the Value of a VariableCalculating the Value of a VariableFind the value of y for the given value of x.

10 1010 y5

2y

y5 2010

5 5

1 11034 2 xyx ;.


14 1415 y3

5y

4 1103 y

3 3

1143 y

4 175 3 xyx ;.


20 2021y7

3y

20 17 y

7 7

3 6 4 xxyx ;.


66y3 9

3y

3 6

33

y3

Notes Over 1.4Using an Equation with More than One VariableUsing an Equation with More than One Variable5. The cost is c = 5000 + 0.56x where x is the number of items produced. Solve the equation for x, then evaluate x when c = 8360.

50005000x560.5000c

560

5000

.

c

x

xc 5605000 .

560.560.

560

50008360

.

6000

Notes Over 1.4Using an Equation with More than One VariableUsing an Equation with More than One Variable6. At a delicatessen, ham costs $2.49 per pound and Swiss cheese costs $3.79 per pound. The customer has $9.50 to spend on 2 pounds of ham and some cheese. How much cheese can she purchase? Write an equation and solve it.

984. 984.524.s793.

191.s

h492.

793. 793.

s793. 509.984. 509793 .. s

lbs

rhAr 2 :for Solve 7 .

Notes Over 1.4Rewriting a Common FormulaRewriting a Common FormulaSolve for the indicated variable.

h

Ar

2

h2h2

lwhVw :for Solve 8.


lh

Vw

lhlh

4

3 :for Solve 9 h

bb.


4

3hb

4 4b4 h3

rtPPAt :for Solve 10 .


rP

PAt

rP rP PA rtP

PP

hbVh 2

3

1 :for Solve 11 .


2

3

b

Vh

2b2bV3 hb2

33

100012 :for Solve 12

xpx .


x

12p1000

x 1000 1000

1212

00012,px 100000012 ,

p1000

Notes Over 1.4

Download - Notes Over 1.4 Do you feel like it’s hard getting everything working together? Well start focusing on one thing at a time

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