Answer:
The set of rational numbers is closed under addition, subtraction, multiplication, and division (division by zero is not defined) because if you complete any of these operations on rational numbers, the solution is always a rational number Page 8 11.
Step-by-step explanation:
<span>2 cups of flower equals 12 muffins, which means that (2/12) (cups of flower/muffins) times m muffins = cups of flowers. </span>
<span>On the second one, lets make an equation system. </span>
<span>Lets call this seasons score x. </span>
<span>Last season Betty scored 36 which is 8 less than twice the score this season. </span>
<span>Translating this to an equation yields the following expression: </span>
<span>2x - 8 = 36 </span>
<span>Then solving! </span>
<span>2x - 8 = 36 </span>
<span>2x = 44 </span>
<span>x = 22 </span>
Answer:
C) In step 3, he should have determined which square is closest to 18.
Step-by-step explanation:
17.64 also rounds to 18. 17.64 differs from 18 by ...
18 -17.64 = 0.36
whereas 18.49 differs from 18 by ...
18.49 -18 = 0.49
Hence 17.64 is closer to 18 and we might expect 4.2 to be closer to √18 than is 4.3.
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The actual root of 18 is about 4.243, so 4.2 is a better approximation.