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anzhelika [568]
3 years ago
11

Marina volunteers at the salvation army. she has been tasked with buying non-perishable items for families that were displaced b

y a recent flood. she finds a company willing to sell her cans of food at a discounted price. in the system below x represents the number of small cans she purchased and y represents the number of large cans she purchased.
2.25x+4.75y=714.75
x+y=181

part c: how many small cans did marina purchase
part d:how many large cans did marina purchase
Mathematics
1 answer:
zavuch27 [327]3 years ago
7 0
Idkbdkakhanamakwwwvwbsjozuxbsbakakzuxjnwnaushx
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Katarina [22]

Answer:

(x-3)(x+3)

Step-by-step explanation:

We are given the expression \displaystyle \large{x^2-9}:—

To factor this expression, we have a formula for it which is <u>difference of two squares</u>:—

\displaystyle \large{a^2-b^2=(a+b)(a-b)}

You can also swap from \displaystyle \large{(a+b)(a-b)} to \displaystyle \large{(a-b)(a+b)} via multiplication property.

From the expression, factor using the formula above:—

\displaystyle \large{x^2-9=(x^2)-(3)^2}\\\displaystyle \large{x^2-9=(x-3)(x+3)}

Therefore, the factored expression is:—

\displaystyle \large{\boxed{(x-3)(x+3)}}

__________________________________________________________

If you have any questions regarding the problem or need clarification of my answer/explanation, do not hesitate to ask in comment!

5 0
2 years ago
Toni ran 45 mile in 15 hour. Write an equation for the distance in miles y that she ran in x hours if she ran at a constant rate
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Answer:

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6 0
3 years ago
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AURORKA [14]
To get that percentage you just need to divide 1550 by 200p:
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Step-by-step explanation:

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