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
Goshia [24]
3 years ago
8

An urn contains marbles of four colors: red, yellow, blue, and green. All but 45 of the marbles are red; all but 45 are yellow;

all but 45 are blue; and all but 60 are green. How many of the marbles are green?
Mathematics
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

5

Step-by-step explanation:

Let the number of

red marbles be r

blue marbles be b

yellow marbles be y and

green marbles be g

Let the Total number of marbles be T then

r + y + b + g = T

If all but 45 of the marbles are red then

y + b + g = 45

As such, r + 45 = T

all but 45 are yellow;

r + b + g = 45

As such, y + 45 = T

all but 45 are blue;

y + r + g = 45

As such, b + 45 = T

It means that the number of red, yellow and blue marbles are equal

Hence y = b = r

If all but 60 are green

y + b + r = 60

y + y + y = 60

3y = 60

y = 60/3 =20

This means that there are 20 yellow marbles, 20 red marbles and 20 green marbles

The total number of marbles T = 20 + 45 = 65

As such, g + 60 = T

g + 60 = 65

g = 65 - 60

= 5 marbles

You might be interested in
Bridget and Caroline are marking exam papers. Each set takes Bridget 91 minutes and Caroline 2 hours. Express the times Bridget
belka [17]
The ratio is 91/120 because 91 is only divisible by 1, 7, 13, 91 and 120 is not divisible by 7, 13, or 91 so you cannot reduce this ratio
5 0
3 years ago
Find x in this porportion 5/2x =25/4
Andrei [34K]

Answer:

x = \frac{2}{5}

Step-by-step explanation:

Given

\frac{5}{2x} = \frac{25}{4} ( cross- multiply )

25 × 2x = 5 × 4

50x = 20 ( divide both sides by 50 )

x = \frac{20}{50} = \frac{2}{5}

6 0
3 years ago
Read 2 more answers
What is the fraction as a mixed number 14/2
slava [35]
7. is the answer to your question
5 0
3 years ago
Find the perimeter if a = 1 b = 4 c = 6 d = 5
g100num [7]

Answer:16

Step-by-step explanation:

Add each side togeather

4 0
3 years ago
Read 2 more answers
Simplify (-2 + 3i) + 2(5 + 6i). Enter your answer in the form a + bi.
Reptile [31]

We will have the following:

(-2+3i)+2(5+6i)=-2+3i+10+12i

=(10-2)+(3i+12i)=8+15i

So, the solution would be:

8+15i

3 0
1 year ago
Other questions:
  • The measure of MKJ is 80°. After analyzing the diagram, Janelle concludes that is an angle bisector.
    15·2 answers
  • Find the sum of the solutions of this equation 8x^2+6x+1=0
    9·1 answer
  • What is the answer for 6
    11·1 answer
  • There are 36 students playing tag at recess.This is 6 times as many are playing hopscotch.Which model shows this compat
    6·1 answer
  • How do you factor x²-100 ?
    9·1 answer
  • Can anyone solve this?????^_^​
    6·1 answer
  • Which function represents exponential decay?
    9·1 answer
  • PLS I beg someone to finish ALL of this :(. I’ve stayed up all night to do this but I couldn’t figure all of them out. Pls pls p
    13·2 answers
  • 40 POINTS!!!!
    12·1 answer
  • Someone please explain this step by step:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!