Christine randomly pulls a marble from a bowl. There are 140 marbles in the bow, of which 80 are black, 28 are green, and the rest are blue. Use words and numbers to describe the probability that she will pull a red marble out of the bowl. Remember to show your work.(2 points)

Answer 1

The probability of pulling a red marble out of the bowl can be calculated by first finding the total number of blue marbles in the bowl.

Total marbles in the bowl = 140
Black marbles = 80
Green marbles = 28
Blue marbles = Total marbles - (Black marbles + Green marbles)
Blue marbles = 140 - (80 + 28)
Blue marbles = 32

Now, the probability of pulling a red marble out of the bowl can be calculated as:

Probability of pulling a red marble = Number of red marbles / Total marbles
Probability of pulling a red marble = 0 / 140
Probability of pulling a red marble = 0

Therefore, the probability of pulling a red marble out of the bowl is 0.

Answer 2

Select ALL expressions that are equivalent to

7x+2(2x−5)−(−5x+3)
(2 points)
Responses

16x−13
16 x minus 13

11x−5−3−5x
11 x minus 5 minus 3 minus 5 x

6x−13
6 x minus 13

11x−10+3−5x
11 x minus 10 plus 3 minus 5 x

11x−10+5x−3
11 x minus 10 plus 5 x minus 3