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2 years ago

Which expression is equivalent to 1/4 x + 3 - 1/3 x + (-2) ?

Mathematics

1 answer:

nasty-shy [4]2 years ago

6 0

Answer:

The value of your expression is 7/12x +1.

Step-by-step explanation:

1/4x + 3 - 1/3x + -2 First, positive and negative is negative

= 1/4x + 3 - 1/3x -2 Combine like terms, 1/4x and 1/3x

= 7/12x + 3 - 2 Combine like terms, +3 and -2

= 7/12x +1

Like terms are when a number have similar exponents bases, variables or just plain numbers.

3x, 4x, 5x

1.02x^2, 1.02x^3

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2 years ago

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Answer:
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Step-by-step solution

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Read 2 more answers

Analyze Corey’s work to find his error. What is Corey’s mistake? He substituted 80 for x instead of y. He should have added 88.2

Anni [7]

x is the temperature and y is the number of swimmers. If there are 80 swimmers, then y = 80 instead of x = 80

This is how Corey should have solved

y = 1.505*x - 88.21

80 = 1.505*x - 88.21 <--- replace y with 80

1.505*x - 88.21 = 80

1.505*x = 80 + 88.21 <--- add 88.21 to both sides

1.505*x = 168.21

x = 168.21/1.505 <--- divide both sides by 1.505

x = 111.767

x = 111.8

If there are 80 swimmers at the pool, then the possible outside temperature is roughly 111.8 degrees F. This temperature seems awfully large, so it's possible that Corey's regression equation has limited scope; in other words, it isn't too useful if x is outside a given interval

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