Mary and Amy had a total of 20 yards of material from which to make costumes. Mary used three times more material to make her co
stume than Amy used, and 2 yards of material was not used. How many yards of material did Amy use for her costume?
1 answer:
Let x be the amount Amy used
Let 3x be the amount Mary used
Let 20-2 be the total amount used
3x + x = 20-2
4x=18
x=4.5
Amy use 4.5 yards of material.
Hope this helped!
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The geometric mean you would use is C
Answer:
490
Step-by-step explanation:
d(x)=700-7(30)
7x 30=210
700-210=490
therefore,
r(x)=490
Answer:
This seems more like an answer then a question, did you perhaps mean to put this on someone elses question?
Step-by-step explanation:
