There are 4 planes which are in line to take off. The first plane has 147 passengers, the second has 123 passengers, the third has 101 passengers, and
the fourth has 53 passengers. Which of the following is a good estimation of how
many passengers are on these four planes?

424

Step-by-step explanation: add them up

The estimate would be 400 passengers.

Step-by-step explanation:

So first, you would add all those numbers together.

147 + 123 + 101 + 53 = 424

After you get your number you would round. The number i got was 424 so i would round down because if it was 50 and over i would round up, But is it was 50 and down you would round down.

So after rounding i got 400.

Hope this helps if this is how you would solve it.

i’m here for points.

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