Evaluating expressions with Variables.

1

100

10x + 5 ; x=2

20

200

6xy + y^2  ; x=3 , y =5 

115

300

8x + 2 • (y + 8) ; x=1/2 y= 3

26

400

The perimeter of a RECTANGLE can be found using the formula p=2(l+w). What is the perimeter of a rectangle with a length of 10cm and a width of 6 and 1/2 cm? 

33

500

[u-u + (9-x)] • 7 - (u+3) x = 4, u = 6

82

2

100

3(14-k) ; k =5 

27

200

-10y/ c^2 ; y=-4 c= -2

4

300

daily double 

5k + 4j (-3k + 6j) -4 ; k=3 j = 1/2 

-1

400

4(b^2 -4b+7) ; b=2 

9

500

3 { 7 [ x + y(7+5) -14]} ; x=19 y=6

1617

3

100

(7p +5) / -5.   p=-3

3 and 1/5

200

5 ( x^2 -7x+9) ; x= 4

-15

300

(10q-4) ^2 ; q=7 

4356

400

(z-7) / (a-(4-3) • 7) ; z=10 

1

500

2{5[ x + y(17- z) +z]} ; x=15, y=4, z=9

560

4

100

-7 (2x + y)  ; x=5 y=-11 

7

200

Daily Double

-5d +(-6-3)u-3 ; d=2, u=7 

-76

300

3(m+1) + x-3 ; m=4, x=2 

14

400

-7(2x -7x +9) ; x=4 

77

500

8 + 7{ x[6+9(y+3) -52] +7} ; x=11 y=10

5524

5

100

2(x+y) ; x=4, y=5

18

200

a + 5a+ 2a + 3a ; a=7 

77

300

q-r-(-4); q=1 , r=7 

-2

400

3(m+1) + 7x-3 ; m=4 , x=2 

26

500

Daily Double

9 + 7{x+y [28-9(33-30)-28]-y} ; X=2, Y=7

1349