![bradenjesmt1028](/avatars/35339.jpg)
bradenjesmt1028
10.01.2020 •
Mathematics
Aphone company charges customers a monthly charge using the equation c = 40 + 0.3m, where is the monthly
charge, in dollars, and m is the number of minutes used by the customer. if someone's monthly charge is $46, how
many minutes did the person use that month?
a. 5
b. 8
c. 10
d. 15
e. 20
Solved
Show answers
More tips
- S Style and Beauty How to Properly Apply Eye Makeup: Tips from a Professional Makeup Artist...
- A Animals and plants How ants survive winter: exploring the secrets of their winter life...
- F Food and Cooking Discover How to Properly Prepare Dough for Rasstegai...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
Answers on questions: Mathematics
- M Mathematics Two cards are drawn at random from a standard deck without replacement. Which of the following represents the probability that the two cards drawn are either both kings or both...
- M Mathematics Two people working together can clean a pig pen in 4 hours. Working alone, it takes Thurman Mervin 3 hours longer to clear the pen than it would take Bobbi Sue. How long would...
- M Mathematics A new bank customer with $3000 wants to open an IRA (Individual Retirement Account) to earn money for retirement. The bank is offering a simple interest rate of 9%. How much interest...
- H History For each determinant, give an example of what would shift the supply curve to the right. a. Resources b. Expectations (producers)- c. Number of producers- d. Taxes and Technology-...
- M Mathematics Write out the following proportions in words. a. 7 : 28 = 2 : 8 b. 3⁄1 = 18⁄6 c. 9 : 72 = 2 : 16 d. 81⁄9 = 45⁄5...
- B Biology An infectious disease researcher isolates the pathogen responsible for an emerging disease. the microbe is grown in the lab for many generations. a preparation of the laboratory-grown...
- M Mathematics PLEASE ANYONE HELP! DONT ANSWER IF UNSURE PLEASE...
Ответ:
Option E
The person used the phone for 20 minutes that month
Solution:
Given that phone company charges customers a monthly charge using the equation:
C = 40 + 0.3m
Where,
"C" is the monthly charge in dollars
"m" is the number of minutes used by the customer
Someone's monthly charge is $46
To find: number of minutes used by that person
Therefore, given C = 46
Substitute C = 46 in given equation
46 = 40 + 0.3m
40 + 0.3m = 46
0.3m = 46 - 40
0.3m = 6
Thus the person used the phone for 20 minutes that month
Ответ:
44 different way
Step-by-step explanation: