Evaluate the experssion when localid="1647946592098"
The value of the expression is .
Two numbers with similar signs get added and the resulting number carries the similar sign.
Two numbers with opposite signs get subtracted and the resulting number carries the sign of the larger number.
If two positive numbers 2 and 3 are being added, then the resulting sum will be , which is positive as well.
And if two negative numbers and are being added, then the resulting sum will be , which is negative as well.
The difference of the numbers is positive because the larger number is positive as well.
And the difference of the numbers is negative because the larger number is negative as well.
To evaluate the expression , substitute the value of x as 6 and substitute the value of y as 12 and subtract the numbers as shown below,
Thus, the value of the expression is .
Challenge The plastic tips on the ends of a shoelace are called aglets. Suppose a sneaker factory produces p pairs of shoes each hour and is in operation for h hours each day. Write a variable expression for the number of single aglets the factory uses each day. Evaluate the expression when . Explain what your answer means.
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