I need help with this question i will need full working out could u help?
1 answer:
Answer:
Total charge=
Step-by-step explanation:
The basic plan of Jo's mobile phone costs which includes
150 free minutes and 13p for each additional minute
150 free texts and 15p for each text
Since Jo made 170 minutes of calls, she exceeded the free minutes and had to pay
170 - 150 = 20 additional minutes, worth 13*20/100=
She also sent 182 texts, 182 - 150 = 32 in excess, worth
So the total charge for the month was
Total charge=
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Answer:
(a)Charlie is right
(b)$0
Step-by-step explanation:
(a)A game is said to be a fair game when the probability of winning is equal to the probability of losing. Mathematically, a game is said to be fair when the expected value is zero.
In the game, the possible outcomes are: HH, HT, TH and TT.
Charlie wins when the outcome is HH, TT
- P(Charlie Wins)=2/4
- P(Charlie Losses)=2/4
Lucy wins when the outcome is HT or TH
- P(Lucy Wins)=2/4
- P(Lucy Losses)=2/4
Therefore, the game is fair. Charlie is right.
(b)
If the outcome is HH, Lucy pays $3.
If the outcome is HT or TH, Lucy gets $2.
If the outcome is TT, Lucy pays $1.
The probability distribution of Lucy's profit is given below:
Expected Profit
Lucy's expected profit from the game is $0.
Given:
The recipe calls for cup of chili powder.
Karl only wants to use half as much so it won’t be so spicy.
To find:
How much chili powder should Karl use?
Solution:
We have,
Chill power for recipe = cup
Chill power used by Karl is half of chill power for recipe.
cup
cup
Therefore, cup of chili powder should Karl use.