Answer:
8 7/10 - 3 4/10 = 5.3, 5 3/10, or 53/10
5.3, 5 3/10, and 53/10 all equals to 8 7/10 - 3 4/10 :)
Step-by-step explanation:
Answer:
The probability is 0.31
Step-by-step explanation:
To find the probability, we will consider the following approach. Given a particular outcome, and considering that each outcome is equally likely, we can calculate the probability by simply counting the number of ways we get the desired outcome and divide it by the total number of outcomes.
In this case, the event of interest is choosing 3 laser printers and 3 inkjets. At first, we have a total of 25 printers and we will be choosing 6 printers at random. The total number of ways in which we can choose 6 elements out of 25 is
, where
. We have that 
Now, we will calculate the number of ways to which we obtain the desired event. We will be choosing 3 laser printers and 3 inkjets. So the total number of ways this can happen is the multiplication of the number of ways we can choose 3 printers out of 10 (for the laser printers) times the number of ways of choosing 3 printers out of 15 (for the inkjets). So, in this case, the event can be obtained in 
So the probability of having 3 laser printers and 3 inkjets is given by

3.25 - 3 = 0.25
3 - 2.75 = 0.25
2.75 - 2.5 = 0.25
2.5 - 2.25 = 0.25
Since we subtracted those numbers, it means we are decreasing.
Therefore, the answer is decrease by 0.25.
Answer:
15.50x5+40.50x2 = $158.50
Step-by-step explanation:
She will buy 5 earrings and 2 pairs of necklaces
(15.50 x 5) + (40.50 x 2)
Hope this helps
Mark as brainllest
Multiply the ratio by 25 and then you will get 50 matchsticks, and 75 bottle tops :)