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4. Tina wants to secure sequins on a piece of felt shaped like a rectangle with a length of 10 cm and width of 21 cm. What is the cost of all the sequins if sequins cost $0.70 per of coverage?

a. $21.70 b. $43.40 c. $73.50 d. 147.00

Respuesta :

First we find the area 10 x 21 = 210 then we multiply 210 x .70 and we get 147.00 total cost. d. 147.00

Answer:d. 147.00

Step-by-step explanation:

Area of sequins required is equal to the area of the rectangle.

Length of rectangle is 10cm and width is 21 cm.

Area of rectangle = length x width.

                               = 10 x21 =210 square cm.

Cost of sequins = 210x0.70= $147.00.

Option d $147.00 is the right answer.