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
Nady [450]
3 years ago
14

A book sold 31,100 copies in its first month of release. Suppose this represents 7.8% of the number of copies sold to date. How

many copies have been sold to date?
Round your answer to the nearest whole number.
Mathematics
1 answer:
zvonat [6]3 years ago
5 0
For this problem you can create a proportion.
Since 31,100 copies is 7.8% of the total copies spoke up to date you can make this proportion:
31,100. 7.8%
——— =. ———
x. 100%
Now you cross multiply and you will get
7.8x=3,110,000
After this you solve for x by isolating the variable.
7.8x/7.8. 3,110,000/7.8
x=398,717.949
Since the question asks you to round to the nearest whole number which is 7 then the final answer would be 398,718
Answer: There has been 398,718 copies sold to date.
You might be interested in
How is a linear function different from a linear equation
adell [148]

Answer:

Linear function= in a linear function  a graph must have both the linear equation [straight lines] and an equation [x-yalue and y-value]

----------------------

Linear equation= produce strainght lines when you graph it out

7 0
3 years ago
HI how are u im good
jeka57 [31]

Answer:

I'm good too, I just finished all my homework (using Brainly ofc)

7 0
2 years ago
Read 2 more answers
Evaluate: 6 + [4(5 + 9)] step by step
jek_recluse [69]
The answer is 62
First you would have to add the ones in the parentheses 5+9=14 then you would have to multiply it by the 4 [4 14]giving you 56. Then 56+6= 62
8 0
3 years ago
A bottle of water contains 591 milliliters. Peter drinks four of these every day. How many total liters will he drink in one yea
Hunter-Best [27]
The answer is 862860

3 0
2 years ago
Read 2 more answers
The numbers 1-10 are written on note cards and placed in a bag. One card will be drawn from the bag at random..
marusya05 [52]

Answer:

Sample space: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Yes, both have 50% probability

No, first event has 30% probability and second one has 20% probability

Step-by-step explanation:

As we have a total of 10 note cards, each if a number from 1 to 10 (each card with a different number) and we want to draw one card at random, the sample space is each of the 10 numbers in the note (sample space with 10 elements):

1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

From this 10 numbers, we have a total of 5 odd numbers and 5 even numbers, so the events of selecting an even number and selecting an odd number are equally likely (the probability of both events are 5/10 = 50%)

The numbers from the sample space divisible by 3 are:

3, 6, 9 (so a total of 3 elements, probability of 3/10 = 30%)

The numbers from the sample space divisible by 5 are:

5, 10 (so a total of 2  elements, probability of 2/10 = 20%)

As the probabilities are different, these events are not equally likely

6 0
3 years ago
Other questions:
  • What is 1/4 of 3/5 of customers
    15·1 answer
  • Ms. Ache is paid $1250 per week but it's fined $100 each day she is late to work Ms.A che wants to make at least $3,000 over the
    8·2 answers
  • Translate -y+8 into words
    5·2 answers
  • BRAINLY!! 20 POINTS!!
    6·2 answers
  • A piece of aluminium has a volume of 7.0cm^3 density of 3.50g\cm^3 what is its mass????
    8·1 answer
  • Whats the slope for this
    9·2 answers
  • Is -1, 6, -36, 216 geometric or not?
    6·1 answer
  • Help me with this please
    13·1 answer
  • I will give u brainliest and 5 star and thanks if its correct
    5·1 answer
  • Can someone please help me?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!