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
Bogdan [553]
3 years ago
6

Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books does he have now?

Mathematics
1 answer:
Helen [10]3 years ago
7 0
Let's create a variable to represent the size of Ruben's book collection prior to his buying the new books.  

B = number of books in Ruben's collection before buying new ones

So, we know that when he bought 6 books, this increased his collection by 12%.

12% of his book collection would be represented by 0.12B.  Therefore, we know that:

0.12B = 6

Divide both sides by 0.12, to get to B = 50.

However, you are being asked how many books does he have now.  B represents the number of books he had before.  Therefore you want to add back the 6 books he just bought.

The answer is 50 + 6 = 56


You might be interested in
You need to purchase enough hamburger buns to make 30 sandwiches. Buns come in packages of 8 or 12, depending on where you shop.
sammy [17]

Answer:

the 8 bun option is the better buy, only 2 left over

Step-by-step explanation:

12 x 3 = 36 6 left over

6 0
3 years ago
31% of 40 estimate what is it please help​
chubhunter [2.5K]

31% of 40 is 12.4 exactly

7 0
3 years ago
Read 2 more answers
PLEASE HELP ME! 22 POINTS!!!
Y_Kistochka [10]

Answer:

300 sq. cm.

Step-by-step explanation:

Do you need the explanation? If so, I can make one for you. You see, my hand is hurt, and it pains me to type.

5 0
3 years ago
HELP PLEASE SOMEONE HELP MEEE ASAPPPP
diamong [38]

Answer:

5

Step-by-step explanation:

You will multiply 1/3 by 3. This equals 1. 5^1 equals 5.

7 0
3 years ago
Mrs. Gomez is a mother to 2 boys. The number of children she has is three times the number of boys she has. Her children are pla
stiks02 [169]
2*3=6 children Mrs Gomez has

6-2= 4 girls she has

pink carnations/ blue carnations= 4/2=2
⇒ numbers of pink carnations= 2* blue carnations

⇒ 12 pink  carnations and 6 blue carnations

5 0
3 years ago
Read 2 more answers
Other questions:
  • ALGEBRA HELP!!!! photo attached!!! A rectangular plot of ground is 10 m longer than it is wide its area is 10,000 square meters.
    12·2 answers
  • the first screening of the latest movie had a box office take of $1,938. Adults pay 7.50 and children 4.50. there were four time
    15·1 answer
  • Jamie drop the quarter from a height of 6 feet above the ground and into a wishing well whose bottom was 5 feet below ground lev
    6·2 answers
  • Patel is solving 8x2 + 16x + 3 = 0. Which steps could he use to solve the quadratic equation? Check all that apply. 8(x2 + 2x +
    10·1 answer
  • Which is the focus of a parabola with equation y^2=4x
    11·2 answers
  • Mary's four friends have 1/3 of a pound of jelly bellies. They want to put them all together, how much candy do they have ?
    6·1 answer
  • What type of equations are equivalent to (1/2) 3
    12·1 answer
  • Math question 18 points >:)!
    7·1 answer
  • To prepare for a party, Jada poured 0.45 liter of juice into each of several cups. Altogether she poured 9 liters of juice into
    13·1 answer
  • Translate the expression. Use x for your variable.<br> "4 more than a number"
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!