Jo's Mobile Plan:
Fixed monthly charge = £16
Monthly 150 free minutes, post that 13p (or £0.13) per minute,
Monthly 150 free texts, post that 15p (or £0.15) per text
Jo's mobile phone usage details:
170 minutes of calls
182 texts
Total Charges for Jo = Fixed Monthly Charge + Charges for Calls + Charges for Texts
⇒ Total Charges for Jo = 16 + (170-150) × 0.13 + (182-150) × 0.15
⇒ Total Charges for Jo = 16 + (20) × 0.13 + (32) × 0.15
⇒ Total Charges for Jo = 16 + 2.6 + 4.8
⇒ Total Charges for Jo = 23.4
Hence, Jo should be charged £23.4 for the month.
Hope this helps !
The correct answer is A !
Yes, because a number that is 5 or higher, rounds up. so the five would make the 9 round up, which would make the 19 go to a 20
Answer:
Coterminal angles are angles with the same terminal side.
When we have an angle A, the coterminal angles can be written as:
A + k*(360°)
where k can be any integer number. (Notice that when we have k = 0, means that A is coterminal with itself)
Then the set of all the coterminal angles to -225° is:
{-225° + k*360°I k ∈ Z}
where Z is the set of integer numbers.
