2 years ago

Una gruesa de lapices(144 unidades) cuesta $6.800. Cuanto cuestan 450 lapices

1 answer:

3 0

Write and solve an equation of ratios:

$6,800 x
------------- = --------------
144 units 450 units

Then 144x = 3060000, or x = $21,250 (answer)

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Answer: 75

Step-by-step explanation:

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See attached picture, is there a way to enter equations or algebraic symbols?

coldgirl [10]

SOLUTIONS

Solve a given equations or algebraic symbols?

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(A)

$\begin{gathered} (f+g)(x)=(x^2+2x)+(1-x^2) \\ collect\text{ like terms} \\ x^2-x^2+2x+1 \\ (f+g)(x^)=2x+1 \end{gathered}$

(B)

$\begin{gathered} (f-g)(x)=(x^2+2x)-(1-x^2) \\ =x^2+2x-1+x^2 \\ =x^2+x^2+2x-1 \\ (f-g)(x)=2x^2+2x-1 \end{gathered}$

(C)

$\begin{gathered} fg(x)=(x^2+2x)(1-x^2) \\ =x^2-x^4+2x-2x^3 \\ fg(x)=-x^4-2x^3+x^2+2x \end{gathered}$

(D)

$\begin{gathered} \frac{f}{g}(x)=(x^2+2x)\div(1-x^2) \\ =\frac{x^2+2x}{1-x^2} \end{gathered}$

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1 year ago

Can somebody help me think it’s b but I’m not sure can ya help me ? Be 100%

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Yes, it’s option one where y is neg five

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$53.40 is 4lb of crab legs
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