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Korolek [52]
3 years ago
10

Can someone help me with this?

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

I'm pretty sure it's 1, 2, and 3, but I'm not positive

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A movie collector has 105 movie posters and 90 band posters if she sells 21 movie posters then how many band posters should she
kotykmax [81]

Hi there! :)

<u>Answer:</u>

In order to maintain the same ratio, she should sell 18 band posters.


<u>Step-by-step explanation:</u>

<u>Initial ratio:</u>

Ratio is: 105 movie posters for 90 band posters = <u>105 : 90</u>


She sells 21 movie posters, which means that we are left with 105 movies minus the 21 she sold.

105 - 21 = 84 → She now has <u>84</u> movie posters.


In order to answer your question, you'll need to use the cross product method:

105 movie posters → 90 band posters

84 movie posters  → X

<u>(90 × 84)</u> ÷ 105 = X

<u>7,560 ÷ 105</u> = X

72 = X ⇒ Number of band posters she should have left to maintain the same ratio.

She has 90 band posters :

90 <u>- X</u> = 72

Add "X" to each side of the equation → 72 + X = 72 + X

90 = <u>72</u> + X

Subtract 72 from each side of the equation → 90 - 72 = 18

<u>18 = X</u>


There you go! I really hope this helped, if there's anything just let me know! :)

4 0
3 years ago
The area of a square equals the square of a length of the side of the square. The perimeter of a square equals the sum of the le
Murrr4er [49]

Answer:

23

Step-by-step explanation:

because the are la of the square is equal all sides of area

5 0
3 years ago
Pleaseeeeeeeee helppp
Stolb23 [73]
2(x-1)=42
2x-2=42
2x=44
X=22
8 0
3 years ago
yo im timed please help!! at the top it says "car A is traveling east at a steady speed of 45 mph. after 2 hours it is 100 miles
mamaluj [8]

Answer:

it could be C or a

Step-by-step explanation:

more likey c be sorry if it's wrong

8 0
3 years ago
Solvex - 3x + 2 = 0 using substitution.<br> U=<br> x<br> X^2<br> 3x^2<br> X^4
nikitadnepr [17]

Answer:

x = \frac{2}{3} Is the correct answer

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

In pic

(Credit:Symbolab)

(Hope this helps can I please have brainlist (crown) ☺️)

3 0
3 years ago
Read 2 more answers
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