Which phrase is not a way to state the meaning of the expression y-7
2 answers:
Answer:
<h2>B. A number subtracted from 7 .</h2>Step-by-step explanation:
The given choices are
A. 7 less than a number
B. A number subtracted from 7
C. A number minus 7
D. The difference between a number and 7
The given expression is:
Remeber, variabels are called "a number" indicating its variability, because they are unknown values.
So, this expression can be written as: "7 less than a numer" or "the difference between a number and 7" or "a number minus seven".
Therefore, among the options, choice B doesn't represents the given expression, because "a number subtracted from 7" is equivalent to which is not the case here.
So, the right answer is B.
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Multiplying fractions is just multiplying the numerators together and the denominators together.
To find out which one is bigger, we need a common denominator. The LCM of 7 and 21 is 21, so convert the first fraction into a denominator of 21. 7 goes into 21 three times, multiply this to the numerator and denominator:
Now just compare the numerators to see which one is bigger.
therefore, 
To find out which one is bigger, we need a common denominator. The LCM of 7 and 21 is 21, so convert the first fraction into a denominator of 21. 7 goes into 21 three times, multiply this to the numerator and denominator:
Now just compare the numerators to see which one is bigger.