I liked using fractions for this type of question, I just find it easier, so in this case 20% is 1/5. That means that £45 is 4/5, so you have to divide 45 by 4 to get 1/5 of the original amount. 45 ÷ 4 = 11.25. Then, you just multiply 11.25 by 5 to get £56.25, which should be the answer. Hope this helped!
Answer:
Step-by-step explanation:
Let m = Number of months
Combined charges for music sharing service = 25+6m
Cost of joining to company = $70
According to the question,
Combined charges > Cost of joining to company (To find number of months it would take for this)
(required inequality)
Answer:
Hello! I believe this is your answer:
It will take 7.5 hours to fill the tank.
Hope this helps, sorry if it's wrong!
Answer:
i^2 = -1.
i^71=(i^70)i=(i²)^35×i=(-1)^35×i=-1×i=-i
Answer:
Step-by-step explanation: Let S represent the sample space , then the possible trials are: S= {SSS, FSSS, FFSSS, FFFSSS, FFFFSSS, …}
Y = the number of trials to be tested.
The possible values of Y are P ={x ∈N , x≥3}
Therefore the five smallest possible values of Y are :
1. Y{SSS} ........ 3 outcomes
2. Y{FSSS} ...... 4 outcomes
3. Y{FFSSS}....... 5 outcomes
4. Y{FFFSSS} ...... 6 outcomes
5. Y{FFFFSSS} ..... 7 outcomes