Answer:
-2.25, -0.4, 0.25, 1.34
Step-by-step explanation:
Answer: Our required probability is 81%.
Step-by-step explanation:
Since we have given that
Probability of defective calculators (C)= 10%
Probability of defective batteries (B) = 14%
Probability of both defective calculators and defective batteries = 5%
So, it becomes.
So, probability that the calculator has a good case and good batteries is given by
Hence, our required probability is 81%.
27 out of 80
27/80
In decimal that is
0.3375
To convert to percent, move the decimal point two places to the right
33.75%
Hope this helps
Answer:
after 2 months the total cost will be the same.
Step-by-step explanation:
21+20x=27+17x subtract 17x on both sides because its the lowest coefficient
20x- 17x = 3x 17x-17x= cancel out
subtract 21 on both sides because its the lowest number
21-21= cancel out. 27-21=6
divide the coefficient by both sides
3x/3= x
6/3= 2
x=2