Richard goes to the electronics store. He buys 2 memory cards that cost $8.99 each and 3 packages of batteries that are on sale
2 answers:
Answer:
$82.36
Step-by-step explanation:
Given :
Richard buys 2 memory cards that cost $8.99 each and 3 packages of batteries that are on sale for $7.47 each.
He also buys a case for his cell phone for $2.99 and a wireless headset for $29.99.
To Find: What is the total cost of Richard’s items, before sales tax?
Solution:
Cost of 1 memory card = $8.99
Cost of 2 memory card =
Cost of 1 battery = $7.47
So, cost of 3 batteries =
Cost of cell phone = $2.99
Cost of headset = $29.99
Total cost of Items = $8.99+$17.98+$22.41+ $2.99+ $29.99
=$82.36
Thus the total cost of Richard’s items, before sales tax is $82.36
You might be interested in
Answer:
Mean = 1.9
Standard deviation = 0.6
Step-by-step explanation:
The Mean is calculate by the formula:
⇒
Thus Mean to the nearest tenth is 1.9
Standard Deviation is the square root of sum of square of the distance of observation from the mean.
where, is mean of the distribution.
Putting all values in the formula, We get
Standard Deviation = 0.597 ≈ 0.6