3 years ago

Distributive property

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

6 0

So what is the question?

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7-x + 2x if y=6 solve'

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Assuming the ‘y’ is supposed to be x,

7 - x + 2x

7 - 6 + 2(6)

7 - 6 + 12

1 + 12

= 13

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Y=4
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Use the distributive property to write an equivalent expression. -(0-2)

Savatey [412]

Answer:

0+2 or simply 2

Step-by-step explanation:

just imagine a "1" by the minus

-1(0-2)

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3 years ago

Determine the value of x.

harina [27]

Answer:

Step-by-step explanation:

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2 years ago

Riley and Erik have earned a total of 135 tokens to buy items in the school store. The ratio of the number of tokens that Riley

lisabon 2012 [21]

Answer:

Riley has 72 tokens

Step-by-step explanation:

System of Equations

We have two conditions for the tokens Riley and Erik have earned. Let's call x and y to the number of tokens of Riley and Erik respectively. The first condition states that

$x+y=135$

Solving for y

$y=135-x$

The second condition is that the ratio of the number of tokens that Riley had to the number of tokens that Erik has is 8 to 7. It's written as

$\displaystyle \frac{x}{y}=\frac{8}{7}$

Or equivalently

$7x=8y$

Replacing y from the first equation

$7x=8(135-x)$

Operating

$7x=1080-8x$

Simplifying

$15x=1080$

$\boxed{x=72}$

Riley has 72 tokens

3 0

3 years ago