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
Free_Kalibri [48]
3 years ago
11

The library sells 500 books at its annual used-book

Mathematics
1 answer:
aliya0001 [1]3 years ago
4 0

Answer:

<h3>Children's books</h3>
  • Number  = c
  • Cost of each = $5
  • Total of children's books = 5c
<h3>Adult books</h3>
  • Number  = a
  • Cost of each = $9
  • Total of children's books = 9a
<h3>The equations reflecting the totals are</h3>
  • Books       ⇒  c + a = 500
  • Total cost ⇒  5c + 9a = 3940

You might be interested in
What is the simplified value of the expression below?<br><br> 12.4 x (negative 6.3)
MrRa [10]

Answer:

78.12

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Jerome went to the store and bought 2 cartons of eggs for $1.30 each and 1 box of pancake mix. His total bill was $6.10. Which e
ahrayia [7]
1.30(2) + X = 6.10
This would be one of a few equations to do. 1.30(2) represents the cartons of eggs which are each 1.30. the X will represent the price of pancake mix and the total is 6.10.
8 0
3 years ago
Read 2 more answers
What is the meaning of the slope of the line ?
Mila [183]

Step-by-step explanation: In algebra, we use the word <em>slope</em> to describe how steep a line is and slope can be found using the ratio <em>rise/run </em>between any two points that are on that line.

The ratio <em>rise/run</em> is the equal to the rate of change

or the <em>change in y/change in x</em>.

In algebra, the rate of change or the <em>change in y/change in x</em> or

the <em>rise/run</em> is also called the slope of a line.

4 0
3 years ago
Questions and Answers<br>1.<br>A is 40% of B. what percentages<br>Discuss<br>A<br>6090<br>B.​
ratelena [41]

Answer:

yeah thats right good job keep up the good work and keep doing ur thing good job

Step-by-step explanation:

5 0
3 years ago
Picture attached!! help!
o-na [289]
C your welcome tell me if u need more help


3 0
4 years ago
Other questions:
  • How do u work out what decimal is equal to 6/20
    6·2 answers
  • Write a ratio for each situation in three ways .between 1899 and 1900,284 out of 1000 people in the united states were 5 to 17 y
    5·1 answer
  • The following dot plot shows the number of books each student checked out from the library last month. Each dot represents a dif
    11·2 answers
  • Marvin collects trading cards.He stores them in boxes that hold 235 cards each.If Marvin has 4 boxes full of cards, how many car
    9·2 answers
  • write and solve an equation for the relationship described below. three times a number minus five equals two times the number
    5·1 answer
  • 6
    11·1 answer
  • HELP!! MATH!!!!!!! thanksss
    6·1 answer
  • Kelsey must pay $200 to rent a booth at the craft fair. The materials for each pendant cost $7.80, and she plans to sell each pe
    9·1 answer
  • HELP please, see the picture below thank you.<br>I have a test, please
    9·2 answers
  • What is x = ?<br> what is AB = ?<br> what is BC = ?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!