1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Afina-wow [57]
3 years ago
10

8. A cellphone company charges $29.99 per month for the first 500 minutes of calls and $0.30 a minute for any calls over the 500

-minute limit. . Last month Demetria made 615 minutes of calls on her cellphone. Excluding tax, what were the total charges for her cellphone calls last month? A. $29.99 B. $34.50 C. $64.49 D. $184.50​
Mathematics
1 answer:
scZoUnD [109]3 years ago
8 0

Answer:

C) $64.49

Step-by-step explanation:

let 'x' = #minutes

cost = 29.99 + 0.3(x-500)

= 29.99 + .3(115)

= 29.99 + 34.50

= $64.49

You might be interested in
Two transformations are performed on a figure on a coordinate plane. The first transformation is translated 6 units up and 3 uni
Bess [88]

Answer:

The last answer choice

Step-by-step explanation:

This transformation doesn't not keep its congruent

7 0
3 years ago
Read 2 more answers
1. Which words represent ADDITION<br> less than<br> sum<br> more than<br> times
Vlad1618 [11]

Answer:

more than

Step-by-step explanation:

8 0
3 years ago
The wildlife department has been feeding a special food to rainbow trout fingerlings in a pond. based on a large number of obser
Liono4ka [1.6K]
The normal distribution curve for the problem is shown below

We need to standardise the value X=405.5 by using the formula

z-score= \frac{X-Mean}{Standard Deviation}
z-score= \frac{405.5-402.7}{8.8} =0.32

We now need to find the probability of z=0.32 by reading the z-table

Note that z-table would give the reading to the left of z-score, so if your aim is to work out the area to the right of a z-score, then you'd need to do:

P(Z\ \textgreater \ z)=1 - P(Z\ \textless \ z)

from  the z-table, the reading P(Z\ \textless \ 0.32) gives 0.6255

hence, 
P(Z\ \textgreater \ 0.32)=1-0.6255=0.3475

The probability that the mean weight for a sample of 40 trout exceeds 405.5 gram is 0.3475 = 34.75%

7 0
3 years ago
What is 85.23 - 2.675 =?
Anna007 [38]
Your answer is 85.555,hope this helped or 85.5 with - over it
8 0
3 years ago
Read 2 more answers
Select the correct answer.
olya-2409 [2.1K]

Answer:

c

Step-by-step explanation:

cuz ik

5 0
3 years ago
Other questions:
  • A factory produces plate glass with a mean thickness of 4 mm and a standard deviation
    14·1 answer
  • Zach has 3/4 hour to play video games. It takes him 1/12 hours to set up the system. Each round of his favorite game takes 1/6 h
    7·2 answers
  • Determine whether the equation 3(4g+6)=2(6g+9) has one solution, no solution, or infinitely many solutions. The equation has . Q
    12·2 answers
  • What is the value of 273 and 280
    15·1 answer
  • 2/3+2/3 I need help PLZZZZ
    7·2 answers
  • The measures of the angles of a triangle are shown in the figure below. Solve for x.<br> 57°
    12·2 answers
  • What is the length of a desk in centimeters ​
    7·1 answer
  • HELP ME ASAP PLEASEEEE, EXPLAIN;(
    15·1 answer
  • Pls help, I don’t understand how to do this
    9·2 answers
  • Is this a function<br> {(-7,-8),(-6,-8),(-4,-6),(-8,5),(-6,4)}<br> Then state the Domain and Range.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!