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pochemuha
3 years ago
6

Simplify each polynomial 2x^2+8-4x+3x-6x6^2+7

Mathematics
1 answer:
Naddika [18.5K]3 years ago
6 0

Answer:


Step-by-step explanation:

2

x

2

+

8

−

4

x

+

3

x

−

6

x

2

+

7

 

Subtract  

6

x

2

from  

2

x

2

.

−

4

x

2

+

8

−

4

x

+

3

x

+

7

Add  

8

and  

7

.

−

4

x

2

−

4

x

+

3

x

+

15

Add  

−

4

x

and  

3

x

.

−

4

x

2

−

x

+

15


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The answer is 1000. 172,090 - 171,090 is 1000 so when you do it backwards and add 1000 to 171,090 you get 172,090. Hope this helps, good luck.
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3 years ago
abbie spent 5/8 of her money and saved the rest. if she spent 45,how much money did she have at first?
algol13

$72

<h3>Further explanation</h3>

<u>Given:</u>

Abbie spent ⁵/₈ of her money and saved the rest.

She spent $45.

<u>Question:</u>

How much money did she have at first?

<u>The Process:</u>

The meaning of "Abbie spent ⁵/₈ of her money" is that she has spent 5 of the 8 parts of the money she had at first.

Let us make a pattern of 8 units for the amount of money that Abbie had at first.

\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}\boxed{\cdot}

Since Abbie spent ⁵/₈ of her money, then we create a pattern of 5 units containing $9 each. Recall that \boxed{\$ 45 \div 5 = \$ 9}

\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9} = \$ 45

From the pattern above, we can see that \boxed{ \ 1 \ unit = \$ 9 \ }.

Let us calculate how much money Abbie had at first.

\boxed{ \ 1 \ unit = \$ 9 \ }

\boxed{ \ 8 \ unit = \ ? \ }

\boxed{ \ 8 \times \$ 9 = \$ 72 \ }

Thus, the money Abbie had at first is $72.

The complete pattern of Abbie's initial money is as follows:

\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9}\boxed{\$ 9} = \$ 72

- - - - - - - - - -

<u>Quick Steps:</u>

Let M as Abbie's initial money.

\boxed{ \ \frac{5}{8} \times M = \$ 45 \ }

Both sides are multiplied by ⁸/₅ so that M is the subject alone on the left side.

\boxed{ \ M = \frac{8}{5} \times \$ 45 \ }

We crossed out 5 and 45.

\boxed{ \ M = 8 \times \$ 9 \ }

\boxed{ \ M = \$ 72 \ }

Thus, the money Abbie had at first is $72.

<h3>Learn more</h3>
  1. How much did Ciro spend altogether for the concert ticket, hotel, and dinner? brainly.com/question/12507869
  2. How much does his cat weigh (Jesse's)? brainly.com/question/388037
  3. How much more paint will Mathilde need to buy? brainly.com/question/36885

Keywords: Abbie, spent 5/8 of her money, saved the rest, $45, $72, how much money, she have at first, the pattern

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4 years ago
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