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sweet-ann [11.9K]
3 years ago
9

Two ballpoint pens are selected at random from a box that contains3 blue pens, 2 red pensand 3 green pens. If X is the number of

blue pens
Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:  3/(28) ≈ 10.7%

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

3 blue + 2 red + 3 green = 8 total pens

   First pick    and           Second pick

 \dfrac{3\ blue\ pens}{8\ total\ pens}\quad \times \quad \dfrac{2\ remaining\ blue\ pens}{7\ remaining\ total\ pens}\quad =\large\boxed{\dfrac{3}{28}}  

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A shirt is regularly priced at 42$. It is on sale for 15% off of the regular price. What is the sale price of the shirt ?
gulaghasi [49]

Answer:

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Step-by-step explanation:

you can convert 15% to a decimal by dividing by 100.

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if you multiply the decimal by the cost of the shirt you get how much the discount is.

0.15 * $42 = 6.30

so a 15% discount on a $42 shirt is $6.30 off. So you subtract the discount from the total cost.

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4 0
2 years ago
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swat32

Answer:

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3 years ago
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5 0
1 year ago
Need your help ASAP please help
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His average is 86 so it is below 90.  to get his average i just added all of his grades up to get 517 and then I divided 517 by 6 because thats how many grades he has and I got 86.

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I HOPE THIS HELPED! PLEASE RATE ME AND MAKE MY ANSWER MOST BRAINLIEST!!

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