zakwanasim123
29.08.2019 •
Mathematics
The spinner is is equally likely to land on any of the five sections answer 3/5 edg
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Ответ:
Step-by-step explanation:
In probability "or" means "addition" and "and" means "multiplication".
We want probability of even number or unshaded. So we will "add" both the individual probabilities.
Probability of even number:
there are 5 numbers total and 2 even numbers (2 & 4). so the probability is 2/5
Probabiilty unshaded:
Out of the 5 sections, 1 is unshaded, hence probability of unshaded is 1/5
Now we add:
2/5 + 1/5 = 3/5
THis is the correct answer.
Ответ:
$10
Step-by-step explanation:
Assume the price of the phone case is x.
Assume the price of the charging cord is y.
Discounted price for phone case : 15% * x
= 0.15x
Discounted price for charging cord = 0.15y
Expression is therefore:
0.15x + 0.15y = 4.20
0.15 * 18 + 0.15y = 4.20
2.7 + 0.15y = 4.20
0.15y = 4.2 - 2.7
y = 1.5/0.15
y = $10