12.George is a salesperson in a jewelry store and earns $100 per week, plus 10% of his weekly sales. If George makes $425 in one
2 answers:
Answer:
12) D is correct. $3,250 is weekly sales of George.
14) B is correct. Markup the price by 29%
16) D is correct. Final balance = 660+115.5 = $775.5
Step-by-step explanation:
Number 12) George is a salesperson in a jewelry store and earns $100 per week, plus 10% of his weekly sales.
Let us suppose his weekly sale $x
Total earn by a salesperson = 100+10% of x
We are given George makes $425 in one week.
Therefore, 100+10% of x = 425
Now solve for x
0.10x=425-100
x=$3250
Thus, $3,250 is weekly sales of George.
Number 14)
Computer store receive a computer cost = $318.85
Computer store sells a computer = $412.99
We need to find what % of price markup
First we find difference of price = 412.99 - 318.85 = $94.14
Now we find what % change =
Therefore, Markup percentage =
Thus, Markup the price by 29%
Number 16)
We are given initial balance in account $660 at 3.5% annual simple interest.
We need to find final balance in account after 5 years.
Formula: Simple Interest = Principle x Rate x Time
where, Principle, P=$660 ; Rate, R=0.035 ; Time, t=5
SI=660 x 0.035 x 5
SI=$115.5
Total amount in account = P+SI
Final balance = 660+115.5 = $775.5
Thus, Final balance = 660+115.5 = $775.5
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Answer:
82.8 in²
Step-by-step explanation:
The surface area a triangular based pyramid :
Base area + 1/2(perimeter * slant height)
Base = 8 inches ; Slant height = 4.6 inches ; altitude of base measure = 6.9 inches
Base area of triangle :
1/2 * base * height
1/2 * 8 * 6.9
4 * 6.9
Base area = 27.6 in²
The perimeter, P = sum of sides ; (s1 + s2 + s3
P = 8 + 8 + 8 = 24 in
Hence,
Surface area = 27.6 in² + 1/2(24*4.6)
Surface area = 27.6 in² + (12 * 4.6) in²
Surface area = (27.6 + 55.2)
Surface area = 82.8 in²
