1 The table shows the costs of sending a parcel by the Express service and by the Rapid
service
Type of service
Cost
Express
£15.25
Rapid
£35.38
Brendan has to send 12 parcels.
It will be cheaper to send the parcels by the Express service than by the Rapid service.
How much cheaper?​

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844

but which class are u may know that first

multiple all that

step-by-step explanation:

27×17

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages