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ladessa [460]
3 years ago
9

Bob sold 34 trading cards, each for 50 cents more than the price he bought them. If each card was originally $0.25, how much did

he earn?​
Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

E/A card was sold for $.75, which means the 34 cards were sold for a total of $25.50

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I need help what is 1/3x-3?​
lilavasa [31]

Answer:

\frac{1}{3}x-3=\frac{x}{3}-3

Step-by-step explanation:

\frac{1}{3}x-3\\\\\frac{1}{3}x = \frac{x}{3}  \\\\Find\:L.C.M.\\\\=\frac{x}{3}-3

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3 years ago
$5,000 is invested at 3% interest. How much money must be invested at 5% interest so that the total interest from the two invest
Nataly [62]
3% interest on 5,000 = 150

275 (the total amount wanted) - 150 (from initial investment)= 125

x (5%) =125
x (0.05)= 125
x/0.05)= 125/0.05
x=2500

you need to invest 2500 at 5% to get the additional 125

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-7r^2= -329 square root property​
Genrish500 [490]

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Answer:

  r = ±√47

Step-by-step explanation:

  -7r^2 = -329 . . . . given

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  r = ±√47 . . . .  square root both sides (square root property of equality)

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