A number decreased by the sum of the number and seven. what is the algebraic expression?
2 answers:
The answer would be x-(7+x)
Answer:
Step-by-step explanation:
n-(7+n) which is a strange problem to give you as that is equal to
n-7-n which always equals -7
And that means n can be any real number and the expression still equals -7
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Then add 6/16 * 112 = 42 striped and
10/16 * 112 = 70 white
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Pretty sure it is 18 girls
Step-by-step explanation:
81 girls: 72 boys
72 boys /16 boys = 4.5
81 girls / 4.5= 18 girls
so 18 girls:16 boys
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x equals to - 5.5 or - 11/2
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