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3 years ago

11

So Alex is selling a very rare spice that costs $100 per gram. Someone wants to buy $80 worth of the spice. How much spice (in g

rams) does Alex give him?

2 answers:

Alika [10]3 years ago

7 0

80% of a gram.
One gram is $100, aka $100 is 100% of a gram, so $80 would be 80% of a gram.

svetlana [45]3 years ago

6 0

80% of one gram is 0.8 grams. It's literally that simple.

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Step-by-step explanation:

Given

If there are r red counter and g green counter then

Probability of drawing a green counter is $P(g)=\frac{4}{9}$

and $P(g)=\frac{\text{No of g counter}}{\text{Total no of counter}}$

Thus $\frac{\text{No of g counter}}{\text{Total no of counter}}=\frac{4}{9}$

$\frac{g}{g+r}=\frac{4}{9}$

$\Rightarrow 9g=4g+4r$

$\Rightarrow 5g=4r\quad \ldots(i)$

Also if 4 red and 2 green counter is added the probability of drawing a green counter is

$P(g)=\frac{10}{23}=\frac{\text{No of g counter}}{\text{Total no of counter}}$

$\Rightarrow \frac{10}{23}=\frac{g+2}{g+2+r+4}$

$\Rightarrow \frac{10}{23}=\frac{g+2}{g+r+6}$

$\Rightarrow 10g+10r+60=23g+46$

$\Rightarrow 10r+14=13g\ quad \ldots(ii)$

Substitute the value of g in equation (ii)[/tex]

$\Rightarrow 10\times \frac{5}{4}g+14=13g$

$\Rightarrow \frac{25}{2}g+14=13g$

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Therefore $r=35$

Thus there 28 green counter and 35 red counter

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marshall27 [118]

Answer: the last option.
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Answer:

brainly.com/question/12500028

brainly.com/question/12500028

brainly.com/question/12500028

Step-by-step explanation:

brainly.com/question/12500028

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