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4 years ago

7

George has a small coin collection. He has collected 16 gold coins, 28 silver coins, 32 copper coins, and4 bronze coins. At a f

lea market, George sells 15% of his coins. Find the number of coins he sold.

2 answers:

Neko [114]4 years ago

6 0

He sold 12 coins, 16+28+32+4=80. 15% of 80 is 12

My name is Ann [436]4 years ago

5 0

Answer: 12 coins

Step-by-step explanation:When you add up all the coins you get 80. 15% of 80 is 12.

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Answer:

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Step-by-step explanation:

Step 1: Isolate <em>x</em>'s

2x² + 12x = 7

Step 2: Factor

2(x² + 6x) = 7

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Step 3: Complete the Square

x² + 6x + 9 = 7/2 + 9

(x + 3)² = 25/2

Step 4: Solve for <em>x</em>

√(x + 3)² = √25/2

x + 3 = 5√2/2

x = -3 ± 5√2/2

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4 years ago

Judy built a rectangular patio that is 9 meters wide and has a perimeter of 40 meters what is the length of Judy’s patio

loris [4]

Hi !

<span><u>Judy built a rectangular patio that is 9 meters wide and has a perimeter of 40 meters what is the length of Judy’s patio ?</u></span>

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