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kolezko [41]
2 years ago
8

15y - 3x + 4x - 5y please help me

Mathematics
2 answers:
natima [27]2 years ago
8 0

Answer:

Combine like terms

10y+ x

Put it in order

X+10y

wel2 years ago
4 0

Answer:

10y+x

hope it's helpful ❤❤❤❤

THANK YOU

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The square of a positive number increased by twice the number equals three. Find the number
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Answer:

1

Step-by-step explanation:

Let the number be x

x² + 2x = 3

x² + 2x - 3 = 0

Product  = -3

Sum =2

Factors = 3 * (-1)

x² + 3x - x - 3 = 0

x*(x+3) - (x + 3) = 0

(x + 3)(x - 1) = 0

Ignore x + 3 because the number is a positive number

x - 1 = 0

x = 1

The number is 1

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3 years ago
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Arte-miy333 [17]

Answer:

x = -11

Step-by-step explanation:

First, get rid of parentheses:

5 + x - 2 = -8

Then, simplify:

3 + x = -8

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Hope this helps ^^

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3 years ago
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What is the value of n?<br><br> Enter your answer in the box.<br><br> n = cm
Aloiza [94]
The Correct answer is

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two bike riders ride around in a circular path. The first rider completes one round in 15 minutes and the second rider completes
katrin2010 [14]

Answer:

Rider 1 does one round in 15 min, and will complete another in each consecutive multiple of 15 min

Rider 2 does one round in 18 min, and will complete another in each consecutive multiple of 18 min

Assuming that they start together, they will complete another round together in a time that is both multiples of 15min and 18 min.

Then we need to find the smallest common multiple between 15 and 18.

To smallest common multiple between two numbers, a and b, is equal to:

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Now, the greatest common factor between 15 and 18 can be found if we write those numbers as a product of prime numbers, such as:

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The greatest common factor is 3.

Then the smallest common multiple will be:

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3 0
3 years ago
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