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Kitty [74]
3 years ago
9

The school store marks up the price of all items by 30% before selling to

Mathematics
1 answer:
Readme [11.4K]3 years ago
4 0

Answer:

$65.325 or $65.33

Step-by-step explanation:

When looking for a percentage in a number, you want to multiply that number by the percentage. Remember that all percentages are to the hundreth power, or 0.00. So if you want to find 30% of 50.25, you multiply it by 0.30 or 0.3. After calculating that you will come up with 15.075 as the percentage. Since the store is marking the price up, you add it to the original price. So your equation is 50.25 + 15.075 =?. After calculating that, you get the answer 65.325. That is only half of your answer though because, when dealing with money, you always round to the nearest hundredth. So when you round 65.325, you get 65.33 which should be the correct answer.

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Answer:

C. 586.2 cm²

Step-by-step explanation:

Area of the figure = area of triangle + area of rectangle + area of semicircle

= (½*b*h) + (L*W) + ½(πr²)

Where,

b = 18 cm

h = 7 cm

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π = 3.14

r = ½(18) = 9 cm

Substitute

Area = (½*18*7) + (22*18) + ½(3.14*9²)

Area = 63 + 396 + 127.17

Area = 586.17 ≈ 586.2 cm²

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3 years ago
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A circular flower bed is 19 m in diameter and has a circular sidewalk around it that is 4 m wide. Find the area of the sidewalk
yaroslaw [1]

Answer:

289 m²

Step-by-step explanation:

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Then get the area of everything including the sidewalk

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Then subtract and you'll get the area of just the sidewalk

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A recursive rule for a geometric sequence is a1=2; an= 4/9 an-1
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A recursive rule for a geometric sequence:

a_1\\\\a_n=r\cdot a_{n-1}

---------------------------------------------------

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---------------------------------------------------

The exciplit rule:

a_n=a_1r^{n-1}

Substitute:

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3 years ago
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No.  The 10% commission will double to 20%,
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3 years ago
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