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3 years ago

Victoria can make 8 necklaces in 4 days. How long does it take her to make ond necklace?

Mathematics

1 answer:

irina1246 [14]3 years ago

5 0

Answer:

$0.5\ days$

Step-by-step explanation:

we know that

Using proportion

$\frac{4}{8}\frac{days}{necklaces} =\frac{x}{1}\frac{days}{necklace} \\ \\x=4/8\\ \\x=0.5\ days$

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nata0808 [166]

So, since we have a cubic equation with 4 terms, the first thing we should try is factoring by grouping, so:

$12x^3+2x^2-30x+5 =0 \implies \\ 2x^2(6x+1)-5(6x+1)=0 \implies \\ (2x^2-5)(6x+1) = 0$

Now that we've factored our equation, we can use ZPP and break it up:

$2x^2-5 = 0 \implies \\ 2x^2=5 \implies\\ x^2=\frac{5}{2} \implies\\ x=\pm\frac{\sqrt{5}}{\sqrt{2}}=\pm\frac{\sqrt{10}}{2} \\ \\ 6x+1 =0 \implies \\ 6x=-1 \implies\\ x=\frac{-1}{6}$

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$x\in \{\frac{\sqrt{10}}{2},-\frac{\sqrt{10}}{2},-\frac{1}{6}\}$

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3 years ago

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Vaselesa [24]

Answer:

The answer is 5.

Step-by-step explanation:

(2x+3)(x+1) Use the FOIL METHOD

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3 years ago

Read 2 more answers

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fgiga [73]

Answer:

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3 years ago

Find the ratio, pls answer quick

Brums [2.3K]

Answer:

1) 1:10

2) 150:2

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Step-by-step explanation:

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3 years ago

A class is made up of 8 boys and 8 girls

rodikova [14]

Hello,

The answer is "8:8 or 1".

Reason:

There are 8 boys and 8 girls therefore the ratio would be...

8:8

8:8=1

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

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3 years ago