In a bin containing 500 marbles, 160 are red, 220 are blue, and 120 are green.

In a bowl of 25 marbles scooped from this bin, how many would be expected to be blue?

A.
6

B.
8

C.
11

D.
22

Question

In a bin containing 500 marbles, 160 are red, 220 are blue, and 120 are green. 


In a bowl of 25 marbles scooped from this bin, how many would be expected to be blue?
 
 A.
6
 
 B.
8
 
 C.
11
 
 D.
22

rebeccaxhawaii · Answer

add up all the marbles - whats 500+260+220+120=?

anonymous · Answer

ik this is easy im in a hurry tho

rebeccaxhawaii · Answer

well we are here to help, not give out answers

abdullahm · Answer

There are 500 total marbles. The question states this.

220 out of the 500 are blue.

We want to know how many will be blue out of 25.

We need to make a proportion:

x/25 = 220/500

Do you know how to cross multiply?

anonymous · Answer

thats not what im askin for.sorry if you miss understood that

anonymous · Answer

d?

debbieg · Answer

Does it seem reasonable that 22 out of 25 would be blue, if only 220 out of 500 are blue? That's less than half of the total marbles that are blue.

abdullahm · Answer

cross multiply it

$\Large\bf \frac{a}{b} =\frac{c}{d}$

becomes

$\large\bf ad = bc$