Which One Doesn't Belong? Which expression does not belong with the others? Explain your reasoning.
1 answer:
The expression that does not belong to the other group of expression is (c) 7(-2)(-5)
<h3>What are expressions?</h3>Expressions are mathematical statements that are represented by numbers and/or variables
The expressions are given as:
- 5(−3)(−1)
- (−4)2(−6)(−2)
- 7(−2)(5)
- −20(−6)
Start by evaluating all 4 expressions
Notice that three of the expressions return a positive result, while one of them return a negative result
The negative expression is the odd one among the four expressions
Hence, the expression that does not belong is (c) 7(-2)(-5)
Read more about algebraic expressions at:
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Answer:
The manual cost that will take to recreate by the firm is $ 90.51
Step-by-step explanation:
Given:
Number of words the manual contains= 16000
Number of words typed by a clerk in one hour and 20 minutes = 4160
To Find:
The total cost for recreating the manual = ?
Solution:
Step 1: Finding the Number of hours is need to type 4160 words :
= hours
hours
hours
So it takes hours to type 4160 word
Step 2 : Finding the Number of hours is needed to type 1 word
=
=
= 3120 words per hour
Step 3 : Finding the Number of hours is needed to type 16000 words
=
Substituting the values
=
= 5.1282 hours
Step 4 : Finding the cost for recreating the manual.
= number of hours x cost per hour
= 5.1282 x $17.65
= 90.51