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
levacccp [35]
3 years ago
6

A bag contains white marbles and yellow marbles, 54 in total. The number of white marbles is 6 less than 3 times the number of y

ellow marbles. How many white marbles are there?
Mathematics
2 answers:
NNADVOKAT [17]3 years ago
7 0
Let x be white marbles, y be yellow marbles
x+y=54…(1)
x=3y - 6 …(2)

put (2) into (1)
(3y - 6) + y = 54
4y = 60
y=15

put y=15 into (1)

x + 15=54
x=39

so y=15 x=39
Pepsi [2]3 years ago
5 0

Answer:

The number of white marbles 'x' is 39

Step-by-step explanation:

Given :

A bag contains white marbles and yellow marbles, 54 in total.

The number of white marbles is 6 less than 3 times the number of    yellow marbles.

To Find : Number of White marbles

Solution :

Let number of white marbles be x

Let number of yellow marbles be y

Since we are given that there are 54 marbles in total.

⇒ x + y = 54 ---(A)

We are also given that the number of white marbles is 6 less than 3 times the number of yellow marbles.

⇒ x = 3y - 6  ---(B)

Solving A and B using substitution method

Put value of x from (B) in (A)

⇒3y - 6 + y = 54

⇒4y - 6 = 54

⇒4y = 54+6

⇒4y = 60

⇒y = 60/4

⇒y = 15

Thus , number of yellow marbles 'y' is 15

To find number of white marbles put value of y in (B)

⇒ x = 3*(15) - 6  

⇒x = 45 - 6

⇒x = 39

Thus , The number of white marbles 'x' is 39

You might be interested in
There are 32 students in a class. 12 of those students are girls what percent of the class are boys?
gtnhenbr [62]
You have 12 girls out of 32, so that's 20 boys. Take your amount of boys divided by your total number. So, 20/32 = .625
You want a percentage, so .625 x 100 = 62.5% boys
3 0
3 years ago
In a crayon box there are 5 dark colors for every 8 light colors. If there are 20 dark colors, hoW many light colors are there.
Kisachek [45]

Answer:

32

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How to write in standard form y=7/4x+3
lawyer [7]
It is in standard form
7 0
2 years ago
A clock that loses 5 seconds each hour has not been reset for 48 hours. What time does the clock show if the correct time is 8:4
nikklg [1K]

Answer:

8:45

Step-by-step explanation:

5x48=240 sec

240 sec = 4 min

8:49-4min= 8:45

7 0
2 years ago
Read 2 more answers
How do you find 65% of 100
galben [10]
You multiply .65 times 100 and you get 65 which is 65% of 100
7 0
2 years ago
Read 2 more answers
Other questions:
  • Write 10x10x10x10x10x10 as an exponent
    15·2 answers
  • In order to study whether IQ level is related to birth order, data were collected from a sample of 540 students on their birth o
    7·1 answer
  • Find the perimeter and area:<br> A pentagon has side lengths of 11cm.
    5·2 answers
  • Please help me answer number 3! And please explain if you can!
    13·1 answer
  • Select Is a Function or is not a Function to correctly classify each relation.
    9·1 answer
  • What is the value of x? enter your answer in the box.​
    11·2 answers
  • Solve for x: -2x + 1 = -6
    11·1 answer
  • Solve using substitution<br>x=-6<br>x-y=-8​
    9·1 answer
  • Find the angle for this problem
    6·1 answer
  • 3=2x<br>Solve this equation.<br>Then verify IT.​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!