SOLUTION: A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width is 5.5 inches; a rectangular hole measuring 1.2 inches by 0.3
Algebra.Com
Question 153609: A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width is 5.5 inches; a rectangular hole measuring 1.2 inches by 0.3 inches is left in the center. (See diagram below) (a) How many square inches in area is the light-switch plate (the shaded region)? (b) If the cost to construct the plate is $4.27 per square inch, what is the construction cost?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A rectangular light-switch plate is made according to the following dimensions. The length is 7 inches, and the width is 5.5 inches; a rectangular hole measuring 1.2 inches by 0.3 inches is left in the center. (See diagram below) (a) How many square inches in area is the light-switch plate (the shaded region)?
:
Find the area of the plate less the hole:
(7 * 5.5) - (1.2 * .3) =
38.5 - .36 = 38.14 sq inches
:
(b) If the cost to construct the plate is $4.27 per square inch, what is the construction cost?
:
38.14 * 4.27 = $162.86
RELATED QUESTIONS
A rectangular light-switch plate is made according to the following dimensions. The... (answered by vleith)
A rectangular light-switch plate is made according to the following dimensions. The... (answered by nerdybill)
A rectangular light-switch plate is made according to the following dimensions. The... (answered by nerdybill)
4. A rectangular light-switch plate is made according to the following dimensions. The... (answered by Mathtut)
4. A rectangular light-switch plate is made according to the following dimensions. The... (answered by Mathtut)
1. A rectangular light-switch plate is made according to the following dimensions. The... (answered by nerdybill,solver91311)
a rectangular light-switch plate is made according to the following dimensions. The... (answered by Earlsdon)
A rectangular light switch plate is made according to the following dimensions. The... (answered by Mathtut)
An aluminum plate is made according to the following dimensions. The outer radius is 12... (answered by solver91311)