10 red
8 blue
2 green
Total number = 20
Probability that Gina takes a red pen = number of red pens divided by the total = 10/20 = 0.5 = 50%
If she repeats the event, the second time the probability is the same: 0.5 = 50%
Probability of two events = probability of the first one multiplied by the probability of the second = 0.5 x 0.5 =0.25 = 25%
Answer:
Probability = 0.25 = 25%
Answer:
11%
Step-by-step explanation:
<em>Percentage increase = (New average- previous average)/previous average x 100</em>
<em>New average: 1554</em>
<em>Previous average: 1400</em>
Percentage increase = (1554-1400)/1400 x 100
Percentage increase = 154/1400 x 100
Percentage increase = 0.11 x 100
Percentage increase = 11%
Therefore, the average increased by 11%.
!!
In order to obtain a ratio of boys to girls equal to 3:5, the number of boys has to be written as 3 x and the number of girls as 5 x where x is a common factor to the number of girls and the number of boys. The total number of boys and girls is 600. Hence
<span>3x + 5x = 600 </span>
Solve for x
<span>8x = 600 </span>
<span>x = 75 </span>
Number of boys
<span>3x = 3 × 75 = 225 </span>
Number of girls
<span>5x = 5 × 75 = 375</span>
Answer:
1/72
Step-by-step explanation:
1/9/8/1=1/9x1/8=1/72
Step-by-step explanation:
there is no diagram to look at
