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dolphi86 [110]
3 years ago
15

Carlito has only nickels and dimes. If he has a total of 13 coins and the total value of the coins is $1.05, how many dimes does

he have?
Mathematics
1 answer:
Mamont248 [21]3 years ago
7 0
He has eight dimes and five nickles.
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Simplify 3x²y³ over 12x⁶y
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Answer:

12x^6y

Step-by-step explanation:

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Nikhil gets paid a 5 percent commission on every pair of shoes that he sells. He earned $1.00 on the last pair of shoes that he
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The expression that can be used to represent x is not shown.

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3 years ago
Need help ASAP!!!!!!
trapecia [35]

Answer:

see explanation

Step-by-step explanation:

x² + 3x + 7 = 5 ( subtract 5 from both sides )

x² + 3x + 2 = 0 ← in standard form

(x + 2)(x + 1) = 0 ← in factored form

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x + 2 = 0 → x = - 2

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x² - 2 = - 2x² + 5x ( subtract - 2x² + 5x from both sides )

3x² - 5x - 2 = 0 ← in standard form

(3x + 1)(x - 2) = 0 ← in factored form

Equate each factor to zero and solve for x

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x - 2 = 0 ⇒ x = 2

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(x + 3)² + 4x = 0 ← expand left side using FOIL and simplify

x² + 6x + 9 + 4x = 0

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(x + 9)(x + 1) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 9 = 0 ⇒ x = - 9

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