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
Ilia_Sergeevich [38]
3 years ago
13

4. A store had 86 DVDs and 52 CDs. When the equal number of DVDs and CDs were sold,

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

51 DVDs

Step-by-step explanation:

Let the number of DVDs and CDs sold be x each.

<u>Initial</u>

Number of DVDs= 86

Number of CDs= 52

<u>After selling</u>

Number of DVDs= 86 -x

Number of CDs= 52 -x

Given that there are 3 times as many DVDs than CDs left,

86 -x= 3(52 -x)

<em>Expand:</em>

86 -x= 156 -3x

<em>Bring x terms to 1 side, constant to the other:</em>

3x -x= 156 -86

<em>Simplify:</em>

2x= 70

<em>Divide both sides by 2:</em>

x= 35

Amount of DVDs left

= 86 -x

= 86 -35

= 51

You might be interested in
Multiply (3x - 2)2.
alexandr1967 [171]
That would  be (6x-4)
7 0
3 years ago
Read 2 more answers
46 cents is what fraction of a dollar
Vikentia [17]
Since there are a 100 cents in a dollar. the 100 is the denominator.
46/100, reduce; 23/50, can't be reduced any further. so 23/50 is the fraction. 
7 0
3 years ago
Read 2 more answers
I GIVEEEE BRAINLILSTT
Zigmanuir [339]
Alr bet x + 8 y - 9 :)
6 0
3 years ago
A) 3 in<br> b) 4 in <br> c) 5 in <br> d) 6 in <br><br><br> PLEASE HELP
Andrei [34K]

Answer:

I would say A

Step-by-step explanation:

8 0
3 years ago
Which image below is an acute triangle?
agasfer [191]

Answer:

The answer is Triangle C

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • 76degrees faherheit = what in Celsius?​
    12·1 answer
  • A six sided die is tossed and a coin is flipped. What is the fractional probability that the die lands on an even number and the
    8·1 answer
  • If five people share three cartons of chow mein, what is each person’s share?
    14·2 answers
  • A department store buys 100 shirts at a cost of ​$1800 and sells them at a selling price of ​$20 each. Find the percent markup.
    12·1 answer
  • A portion of the Quadratic Formula proof is shown. Fill in the missing statement. Statements Reasons x squared plus b over a tim
    15·2 answers
  • Leah has 12 times the amount of shorts as Jessica together they have 136 shorts how many shorts does Leah have
    14·2 answers
  • Find the measure of x<br><br> A. x=2<br> B. x = 6<br> C. x=8<br> D. X=10
    12·1 answer
  • On a fith grade benchmark exam with 55 questions total sunny answerd 80 % of them how many questions did he answer correctly
    6·1 answer
  • Beth put $8,000 in a savings account. At the end of a year the account had earned $72 in interest. What was the yearly interest
    9·1 answer
  • Given that line CD is a perpendicular bisector of triangle ABC, if side AB has a length of 11 and side AC has a length of 14 wha
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!