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Answer:
94.5
Step-by-step explanation:
Use the trapezoid area formula:
[(a+b)/2]×h
a and b represent the bases. h is the height
both bases are 17.5 and 9.5. So plug them in.
17.5 plus 9.5 is 27.
27 divided by 2 is 13.5
Now, multiply 13.5 by the height.
13.5 times 7 is <u>94.5</u>
There are 3 feet in a yard. 27 feet ÷ 3 = 9 yards. Now you have the number of yards. Divide this by 48. You will get 0.1875 yards per dress.