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
kifflom [539]
3 years ago
12

Solving a decim For his long distance phone service, Justin pays a $3 monthly fee plus 11 cents per minute. Last month, Justin's

long distance bill was $12.79. For how many minutes was Justin billed?​
Mathematics
1 answer:
torisob [31]3 years ago
4 0

Answer:

89 minutes

Step-by-step explanation:

Let

x = number of minutes

Total cost = fixed cost + variable cost

Total cost = $12.79

Fixed cost = $3

Variable cost = cost per minutes * number of minutes

= 0.11 * x

= 0.11x

Total cost = fixed cost + variable cost

12.79 = 3 + 0.11x

12.79 - 3 = 0.11x

9.79 = 0.11x

x = 9.79/0.11

x = 89

x = number of minutes = 89 minutes

You might be interested in
The square root of t is greater than 2 and less than 3.5. How many integer values of t satisfy this condition?
Jlenok [28]

2

8 integers

4 0
3 years ago
Read 2 more answers
Help me with this plz.
kondaur [170]
The answer is F because my brother is in high school and he knows the's things
7 0
3 years ago
Read 2 more answers
A scale of 1:20 is used to make the drawing of a car if the length of the drawing is 10 what is the real length of the car?
Murljashka [212]

Answer: 200

Step-by-step explanation:

since 10 is one part

10 x 20 = 200

3 0
3 years ago
a soccer coach gives each player 1/2 liter of water at halftime. if there are 11 players how many liters does he need
Vitek1552 [10]

Answer:

1 player =1/2 liter

11 players=X

1/2x11

16,5

6 0
2 years ago
Read 2 more answers
What is the probability a person admitted to the hospital is paid a malpractice claim (to decimals)
Liula [17]

Full question:

Astudy of 31,000 hospital admissions in New York State found that 4% of the admissions

led to treatment-caused injuries. One-seventh of these treatment-caused injuries resulted in

death, and one-fourth were caused by negligence. Malpractice claims were filed in one out

of 7.5 cases involving negligence, and payments were made in one out of every two claims

What is the probability a person admitted to the hospital is paid a malpractice claim (to decimals)

Answer:

Explanation:

Since 4% of admissions lead to treatment-caused injuries, we have 4/100×31000= 1240 treatment caused injuries for every 31000 people admitted

1/7 resulted in death = 1/7×1240= 177 people die for every 1240 treatment caused injuries

1/4 from negligence= 1/4×1240= 310 people get treatment caused injuries from negligence for every 1240 people

Malpractice claims in one of out of 7.5 cases of negligence= 13.3% of negligence cases= 0.1333×310= 41 claims for every 1240 people with treatment caused injuries

Payments were made in one out of every two claims, therefore payments for claims =50% of 41 cases of negligence= 21 payments(approximately) for every 1240 people with treatment caused injuries

Probability= number of favorable outcomes /total number of outcomes

Probability that a person admitted into the hospital will be paid a claim= 21/31000= 0.000677

4 0
3 years ago
Other questions:
  • A penny is 1.9 cm wide. What is the circumference of a penny? Approximate using Pi = 3.14 and round the answer to the nearest te
    12·2 answers
  • Write an inequality for the graph?
    15·1 answer
  • Tomas needs exactly 666 potatoes to make 121212 potato pancakes.
    8·1 answer
  • Admission to the fair is $16 a person. Ride passes are $12 per person. Parking is $8 per family. How many family members visited
    15·1 answer
  • How do you write <br> 3.7 × 104 in standard form
    15·1 answer
  • -3=6m+5+4 i really need help with thid
    6·2 answers
  • In Store A the price of mayonnaise went
    9·1 answer
  • A-9=6<br> p-20=-30<br> z-(-12)=15<br> x-(-7)=10
    13·1 answer
  • Juan saved x dollers last month. This month he saved $8 more than 3 times the amount he saved last month. he saved a total of $1
    14·1 answer
  • Is ac perpidicular to xz? explain
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!