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
Iteru [2.4K]
2 years ago
15

A bag contains 4 blue marbles, 5 green marbles and 3 yellow marbles. How many blue marbles should you add to the bag so that the

probability of drawing a marble is 0.80
Mathematics
1 answer:
Nadusha1986 [10]2 years ago
4 0

Answer:

ADD 28 blue marbles.  Added for total of 32/40= 0.80

Step-by-step explanation:

4/12 or 1/3 (33%) for original amount

X/X+8=.8

X=.8 x (X+8)

X=

<u>Sorry </u>I do not remember how to complete this equation so did it by substituting numbers until solution was .80

Need a total of 32/32+8 (40)  =0.8  or 80% chance

So need to add

28 blue marbles.

You might be interested in
Which expression has the same value as the one below?
Alex787 [66]
Your answer is A have a good day
6 0
3 years ago
Read 2 more answers
Round 368cm to the nearest meter
Bogdan [553]
4 metres hihiihiihiihihiihihiihiihihiihihiihiihiihiihihiihihiihiihi

4 0
3 years ago
What is 4 and 11/32 as a decimal
anygoal [31]
The answer is 4.3 to 1 decimal place
8 0
3 years ago
Sasha buys a bicycle priced at $90. If the sales tax is 10%, how much tax will Sasha pay?
tekilochka [14]

Answer:

Sasha will pay $99.

Step-by-step explanation:

10% of 90 is 9 so add that together you get $99.

8 0
3 years ago
Read 2 more answers
A lighthouse sights a boat. The angle of depression from the top of the lighthouse to the boat is 7 degrees. At this time, the h
koban [17]

Answer:

Step-by-step explanation:

tan7=h/820

h=820tan7

h=101m

3 0
3 years ago
Read 2 more answers
Other questions:
  • Maureen spent sh 207 to buy 7 exercise books and 4 pens while Sharon spent sh 165 to buy 5 exercise books and 5 pens of same typ
    10·1 answer
  • Can anyone help with this please
    8·2 answers
  • What is 13.89 rounded to the nearest thousandth?
    10·1 answer
  • What is the Square root of -48, please show steps
    7·1 answer
  • If the instructions for a problem ask you to use the smallest possible domain to completely graph two periods of y = 5 + 3 cos 2
    7·2 answers
  • Evaluate the function at the indicated values. f(x)= 6x^2+ 5x -12
    10·1 answer
  • Find the volume of the pyramid. Round your answer to the nearest tenth.
    15·1 answer
  • Jeff uses 3 fifth-size strips to model 3/5. He wants to use tenth-size strips to model an equivalent fraction. How many tenth-si
    10·2 answers
  • Convert 131 57’ 32” to decimal degree
    11·1 answer
  • A contractor bought 7.6 ft to the second power of sheet metal. he has used 3.7ft to the scound power so far and has ​$117 worth
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!