Question

9
the local baseball team is building a new stadium that has a replay screen that measures 70 feet high by 120 feet long. the huge screen will cost $25 per square foot. how much will it cost?
10
find the perimeter of the trapezoid.
11
a fire truck is mostly rectangular with a length of 28.4 feet and width of 7.65 feet. what is the area the truck takes up on the road?
12
john wants to repaint his front door that measures 2.33 m high x 0.89 m wide. the paint costs $1.29 per square meter, how much will it cost?
13
if $a = 3$, $c = 5$ and the perimeter of the triangle = 15, what is the length of $b$?
14
susan designs frames. she needs to create a frame for a picture which measures 8.5 x 11 inches. she wants the frame to be 1 inch wide all around. what is the perimeter of the outside of the frame?
15
tina wants to buy a carpet for her family room that measures 20 feet by 30 feet. to make sure there is enough carpet she wants to have the length and width be cut 1 foot longer than needed. if the carpet she wants costs $7.75/square foot, how much will it cost?
16
find the perimeter of the parallelogram.

Explanation:

Step1: Calculate screen area

$\text{Area} = 70 \times 120 = 8400$ square feet

Step2: Calculate total cost

$\text{Cost} = 8400 \times 25 = 210000$ dollars

Step1: Calculate truck road area

$\text{Area} = 28.4 \times 7.65 = 217.26$ square feet

Step1: Sum all trapezoid sides

$\text{Perimeter} = 8 + 5 + 10 + 8 = 31$ cm

Step1: Calculate door area

$\text{Area} = 2.33 \times 0.89 = 2.0737$ square meters

Step2: Calculate total paint cost

$\text{Cost} = 2.0737 \times 1.29 \approx 2.67$ dollars

Answer:

$\$210,000$

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