Question

PLZ HELP!!
The daytime telphone rate between two cities is 90 cents for the first 3 minutes and c cents for each additional minute. the total charge is reduced 65 percent on calls made after 11:00 p.m. the cost , in dollars , of a 30-minute call made at 11:15 p.m. between these two cities is

A .35(.90) +27c
B .35 (.90+.27c)
C .65 (.90+27c)
D .65(.90+.30c)

Answer 1

i have asked this for an hour now !!!

Answer 2

Okay well is the 30 minute call made after 11?

Answer 3

yes

Answer 4

ok so listen

Answer 5

yes

Answer 6

Do you wanna know the answer or how to do it?

Answer 7

i already know tthe answer so i want to know how to do it

Answer 8

okay one sec, I’m calculating it .

Answer 9

ok

Answer 10

is it C .65 (.90+27c) ?

Answer 11

is that what your book says the answer is?

Answer 12

ok wait

Answer 13

no my book says it is B @fahminator

Answer 14

OH
I’m sorry you’re right

Answer 15

I forgot one crucial step: subtracting 65 from 100.

Answer 16

to find out how much it will have. Yes you’re right.

Answer 17

Okay. I’ll show you how to do it.

Answer 18

Are you listening?

Answer 19

wait i knwo how

Answer 20

okay. Best response for helping you? :P

Answer 21

Thanks :)

Answer 22

but i want to know why it is +.27c and not 27 times c

Answer 23

y is it in decimal?

Answer 24

You mean 0.27 instead of actually 27?

Answer 25

Because the amount of cents is over 1: it will be like 10 cents, it could be 30 cents, 100 cents, but we have to divide it by 100 to get a dollar. For example, 10 cents is 10/100 = 0.1 dollars.

Answer 26

They asked us for an answer in dollars.

Answer 27

ok but why does 27 minutes in decimal ?

Answer 28

If they wanted an answer in cents, we would keep the 90 as 90 and the 27 as 27 instead of .90 and .27.

Answer 29

@fahminator 27 is for 30-3 right so why in decimal

what does time have to do with decimal?

Answer 30

The time isn’t in decimal. The cents are. The reason it is 0.27c instead of 27c is because they wanted the answer in DOLLARS. To find an answer in dollars when we have cents, we simply divide by 100. so it is basically supposed to be 27 * c/100 , but we can reformulate this to be 27/100 * c. and this leads to 0.27*c.

Answer 31

understand?

Answer 32

yes got it thanku

Answer 33

@fahminator

Answer 34

Okay, glad i helped :) follow me if you need any more help in the future!

Answer 35

and just ot check i had to subtract it from hundred so i can get the percent decrease right? @fahminator

Answer 36

No, not the percentage DECREASE, but the percentage multiplied by it.

Answer 37

since it’s DECREASING by 65 %, it means that (since the total is 100%) we can do 100 - 65 to find how much it will be. 65% of 100% are removed. What is the remainder? 35.

Answer 38

oh ok thanu again

Answer 39

thanku*