Question

Jenna has a bag that contains 7 red marbles and 25 blue marbles. She selects a marble at random, and then, without replacing the first one, selects another marble at random.

What is the probability that Jenna selects a blue marble and then a red marble? Round your answer to the nearest percent.

P(blue and red) ≈

Answer 1

Blue:

\(\dfrac{25}{32}\)

When you don't replace, the total goes down by 1

Red:

\(\dfrac{7}{31}\)


Multiply both

\(\dfrac{25}{32}*\dfrac{7}{31}=\)

Answer 2

175/992

Answer 3

?

Answer 4

Use a calculator to divide and multiply by 100

Answer 5

idk please help

Answer 6

Do you have a calculator?

Answer 7

no

Answer 8

On your computer?

Answer 9

no it does not work

Answer 10

https://www.google.com/webhp?sourceid=chrome-instant&rlz=1C1CHWA_enUS629US629&ion=1&espv=2&ie=UTF-8#q=calculator

Answer 11

ok what do I do

Answer 12

put 175/992

Answer 13

ok

Answer 14

and then multiply by 100

Answer 15

Tell me what you get

Answer 16

17.6411290323

Answer 17

round to the nearest percent

Answer 18

17.6?

Answer 19

nearest percent not tenth

Answer 20

18?

Answer 21

Yes

Answer 22

thank you sooo much

Answer 23

You're welcome :)