Sophia has a bag with 3 purple marbles and 4 blue marbles in it. she is going to randomly draw a marble from the bag 280 times, putting the marble back in the bag after each draw. complete the following statement with the best prediction. sophia will draw a purple can anyone

Sophia will draw a purple marble 120 times .

Step-by-step explanation:

Number of purple marbles in the bag = 3

Number of blue marbles in the bag = 4

Total number of marbles in the bag = 7

Each time the marble drawn is put back into the bag.

Also, number of draws = 280

So, Sophia will draw a purple marble = Probability of drawing a purple marble × Number of draws

Therefore, Sophia will draw a purple marble 120 times .

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

40% off the regular price is the correct answer.

step-by-step explanation: