If the question is how many shelves are needed, then the answer is 18 shelves.
Answer:
They are both right becuase if you just take away 1 from 20 and 10 you get 2 and 1. For the 4:2 one take away 1 and mutiply by 2 equalling 4:2 but they are still the same thing.
Step-by-step explanation:
Answer:
10 times
Step-by-step explanation:
5 gallons = 20 quarts
20 quarts / 2 quarts = 10
The correct answer is: [D]: "distributive" .
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Note the "distributive property of mutliplication" :
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a(b + c) = ab + ac ;
a(b − c) = ab <span>− ac ;
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13=w-14/2
divide 14 by 2
13=w-7
add 7 to the other side (inverse)
20=w
OPTIONAL: switch the equation around
w=20