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2 years ago

12

Frank has a box of pens. The box contains 6 blue pens, 8 black pens and 3 red pens. Some more blue pens are added to the box. Th

e probability of selecting a blue pen is now 1/2. How many blue pens were added to the box?

2 answers:

polet [3.4K]2 years ago

7 0

Answer: umm i calculated about 10??

Step-by-step explanation:

sammy [17]2 years ago

3 0

I think 10 hope this helps

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Step-by-step explanation:

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2 years ago

What is PA <br> Enter your answer in the box

SSSSS [86.1K]

Answer:

3

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P is the in-center

⇒PA=PE=PD because they are in-radius of the in-circle

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⇒DK=EK=7.2

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using Pythagoras' Theorem : $PK^{2}=PE^{2}+KE^{2}$

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3 years ago

How is using partial products to find the product of two 2-digit factors similar to how you have used partial products in the pa

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