Question

The table shows the results of drawing one marble from a bag of colored marbles. Each marble was replaced after the outcome was recorded. If there are a total of 40 marbles in the bag, about how many of the marbles are red?

Color Number of Pulls
red 2
green 8
orange 4
black 6


A.
2

B.
4

C.
6

D.
8
I think it might be 8 or 2 I think it is 8 is that right

Answer 1

plz help

Answer 2

someone help

Answer 3

Let's start by adding all the drawings together.
How many times were marbles drawn from the bag?

Answer 4

20

Answer 5

Great.
Altogether, there were 20 drawings of marbles.
Out of those 20 drawings, how many were red?

Answer 6

2

Answer 7

Good.
Now think like this:
If out of 20 marbles, 2 are red, out of 40 marbles (keeping the same proportion), how many are red?

Answer 8

8

Answer 9

Notice that 40 is twice 20.
If according to the drawings, there are 2 red marbles out of 20 marbles, then how many out of 40 are red?

Answer 10

4

Answer 11

or 2

Answer 12

So if according to the drawing, I think it is probably 2

Answer 13

Answer is 4.
If for 20 marbles there are 2 red ones, then for 40 marbles there are 4 red ones.

Answer 14

Thank you can u help me with another one

Answer 15

The probability of drawing a yellow marble from a bag is 15%. What is the probability of pulling a marble that is not yellow from the bag?