You wish to mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49, $9.78, and $6.18. Roun ding off the items to the neares half dollar, your estimate of the total cost of these items is? A. $23.00
B. $22.30
C. $22.50
D. $22.59
2 answers:
Answer: C. $22.50
Step-by-step explanation:
First round off the given prices to the neares half dollar
$1.85 ≈ $2
$.98 ≈ $1
$3.49 ≈ $3.50
$9.78 ≈ $10
$6.18 ≈ $6
Now, the estimate of the total cost of these items =
Thus, he estimate of the total cost of these items is $22.50.
Hence, C is the right answer.
If you wish to<u> mentally estimate</u> the <u>total cost</u> of items, <u>rounding </u>off the items to the<u> nearest half dollar</u>, then you have to consider all five items separately.
Five items cost $1.85, $.98, $3.49, $9.78, and $6.18.
1. $1.85≈$2;
2. $0.98≈$1;
3. $3.49≈$3.50;
4. $9.78≈$10;
5. $6.18≈$6.
Then the total cost is
$2 + $1 + $3.50 + $10 + $6 =$22.50.
Answer: correct choice is C
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