9514 1404 393
Answer:
D. Dividing both sides of the equal sign by a negative number.
Step-by-step explanation:
The inequality symbol is reversed when an operation is performed that changes ordering. The most usual cases are multiplication or division by a negative number.
For example:
-2 < 1
2 > -1 . . . . multiply or divide both sides by -1
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These operations are not the only ones that change ordering. Care must be taken when applying functions. f(x) = 1/x and f(x) = cos(x) are functions that potentially change ordering, for instance.
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We note that the question asks about inequalities, and the discussion above is about inequalities. However, the answer choices all refer to an equal sign. (?!) We assume the expected response is ...
D. Dividing both sides of the equal sign by a negative number.
Answer:
81
Step-by-step explanation: A square has all sides the same so you just multiply 9×9
Have a great day and a awsome thanks giveing brake :)
Answer:
B. 9/26.
Step-by-step explanation:
You need to change the coefficient of x in the first equation to 9/13 so that adding the 2 equations would eliminate x.
So you would multiply by
= 9/13 / 2
= 9/13 * 1/2
= 9/26 (answer)
Chocolate = 18%
Vanilla = 25%
Strawberry = 12%
Mint Chip = 10%
Other = 35%
The explanation for me getting these exact percentages is because of the formulas given for calculating the percentages from specific numbers and real world problems like this. When you are trying to find the calculation precentages of these types of questions, you divide the number by the total surveyed and multiple by 100.
Example:
125 / 500 = 0.25
0.25 x 100 = 25%
So, this is also how I got the other numbers, just change the "125" to the other numbers.