LOG PROBLEM
Solve for x:
2x + 3 = 12
Solution:
1)2x+3 = 12
.......-3 .....-3
2)2x = 9
.../2 .. /2
3) x = 4.5
WORK TODAY
Area of Rectangles
1. What is the length of a rectangle that has a width of 10.2 centimeters and an area of 40.6 centimeters squared? SHOW FORMULA WORK and make a sketch.
Solution:
a = lw
40.6 = l(10.2)
/10.2..../10.2
3.12 cm = l
Rectangle dimensions: Find the length.
2. Area = 13.2 cm^2 , w = 4.1 cm
3. Area = 122 cm^2 , w = 22.8 cm
4. Area = 654 cm^2 , w = 224.1 cm
5. Area = 200.3 cm^2 , w = 9.6 cm
6. Area = 65.2 cm^2 , w = 14.4 cm
7. Area = 11.5 cm^2 , w = 2.3 cm
8. Area = 42.9 cm^2 , w = 19.1 cm
9. Area = 839.2 cm^2 , w = 24.1 cm
10. Area = 88.2 cm^2 , w = 30.1 cm
HOMEWORK
Rectangle dimensions: Find the length.
11. Area = 493 cm^2 , w = 99.1 cm
12. Area = 89.5 cm^2 , w = 21.8 cm
13. Area = 18.2 cm^2 , w = 3.6 cm
