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
andrezito [222]
3 years ago
7

The ratio of cassette to compact disc is 10 to 3 and the number of cassettes is 10 less than 5 times the number of compact discs

. How many cassettes are there
Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0

There are 20 cassettes.

Step-by-step explanation:

Given,

Ratio of cassette to compact disc = 10:3

Let,

the number of cassettes = 10x

Number of compact disc = 3x

According to given statement;

the number of cassettes is 10 less than 5 times the number of compact discs.

10x = 5(Number of CD) - 10

10x=3(5x)-10 \\10x=15x-10\\10=15x-10x\\10=5x\\5x=10

Dividing both sides by 5

\frac{5x}{5}=\frac{10}{5}\\x=2

Number of cassettes= 10x = 10(2) = 20

There are 20 cassettes.

Keywords: variable, ratio

Learn more about variables at:

  • brainly.com/question/10414011
  • brainly.com/question/10483199

#LearnwithBrainly

You might be interested in
What is 3157 with the 1 being underlined rounded to the nearest 10 or hundred
RUDIKE [14]

Answer:100

Step-by-step explanation:

8 0
3 years ago
Solve the equation r+3 = 3(r-5)​
Harrizon [31]

Answer:

r-9

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

brainleist?

3 0
3 years ago
Read 2 more answers
Find the area of the kite.
Black_prince [1.1K]
Your answer is 36. hope it helps!
6 0
3 years ago
Read 2 more answers
The table displays the frequency of scores for a calculus class on an exam. The mean of the exam scores is 3.5. Score 1 2 3 4 5
vladimir1956 [14]

Answer:

f=11

Mode=4

Median=4

Explanation:

We are given that

a.Mean of the exam score,\bar x=3.5

Score(x)   frequency   C.F

1                  1                 1

2                  3                4

3                  f                 15(4+f=4+11)

4                  13               28

5                   4               32

\sum f_i=1+3+f+13+4=21+f

\sum f_ix_i=1(1)+2(3)+3(f)+4(13)+5(4)=1+6+3f+52+20=79+3f

(\bar x)=\frac{\sum f_ix_i}{\sum f_i}

Using the formula

3.5=\frac{79+3f}{21+f}

73.5+3.5f=79+3f

3.5f-3f=79-73.5

0.5f=5.5

f=\frac{5.5}{0.5}=11

b.Mode:The number which is repeat most times .

4 repeat most times

Hence, mode of all exam scores=4

N=32

N is even

Median=\frac{(\frac{n}{2})^{th}+(\frac{n}{2}+1)^{th}}{2}

Median=\frac{16th+17th}{2}=\frac{4+4}{2}=\frac{8}{2}=4

7 0
3 years ago
Write a rule to describe this transformation
ehidna [41]

Answer:

is b

Step-by-step explanation: because x-4y

5 0
3 years ago
Other questions:
  • An exponential function with a base of 1/2 has been vertically compressed by a factor of 3/4 and reflected in the x-axis. It's a
    8·1 answer
  • Complete the solution of the equation. find the value of y when x equals -1. 8x - 2y= 10
    5·2 answers
  • Plane B is flying 75mph faster than Plane A. Find the time it takes for Plane A to travel 750 miles if it takes Plane B the same
    5·1 answer
  • In American football, a team can score in the following ways: 2 points for safety, 3 points for a field goal, 6 points for a tou
    7·1 answer
  • 12) 10 + (-2)+1<br>how do i solve this?​
    15·1 answer
  • A square park is of side 100 m. A path 5 m wide is made all around the garden inside it. Find the area
    10·2 answers
  • What is the measure of the angle complementary to an angle that is 66 degrees?
    13·1 answer
  • Help 35 points <br> Which value of c markes
    9·2 answers
  • .....................
    14·1 answer
  • _____________________________
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!