3 years ago

Which statement illustrates the associative property of addition?

Mathematics

1 answer:

Alex73 [517]3 years ago

3 0

I think it’s B because

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A blueprint of a bedroom has a scale of 1 4 inch is equivalent to 1 foot. If the closet measures 1 2 inch by 3 4 inch on the blu

Murljashka [212]

Answer:

The actual dimensions of the closet are 2 ft by 3 ft.

Step-by-step explanation:

According to the scale, 1/4 inch <--> 1 foot

The closet dimensions on the scale are (1/2 inch, 3/4) or (2/4 inch, 3/4). Let the real closet dimensions be (x,y).

In this case, the rule of three can be applied to find the missing term of a proportion:

$x*\frac{1}{4} = 1*\frac{2}{4}\\x=2\\y*\frac{1}{4} = 1*\frac{3}{4}\\y=3$

The actual dimensions of the closet are 2 ft by 3 ft.

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4 years ago

What is (f - g)(x)?<br>f(x) = 5x<br>g(x) = 3x2 - 8x

erma4kov [3.2K]

Answer:

$(5x)-(3x^2-8x)=-3x^2+13x$

Step-by-step explanation:

$(f-g)(x)=f(x)-g(x)$

Using this, we can subtract and find the answer.

$(5x)-(3x^2-8x)=-3x^2+13x$

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3 years ago

Lin has some money in her bank account before she starts a summer job. She

nalin [4]

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Step-by-step explanation:

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$\frac{68}{80} \\ \\ \frac{(4)17}{(4)20} \\ \\ \boxed{ \frac{17}{20}}$

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Step-by-step explanation:

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