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
blagie [28]
3 years ago
13

There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 3 8 . There are 18 r

ed marbles in the bag and each is equally likely to be chosen. Work out how many marbles in total there must be.
Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
8 0

Answer:

There are 48 marbles in the bag

Step-by-step explanation:

red: blue : total

3                   8

there are 18 red

18/3 = 6

Multiply everything by 6

3*6                 8*6

18                    48

There are 48 marbles in the bag

You might be interested in
phoebe needs to use 3/4 cup to make one batch of cookies how many batches can she make with 12 cups of sugar?
sattari [20]

\bf \begin{array}{ccll}\stackrel{sugar}{cups}&\stackrel{cookies}{batches}\\\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\\frac{3}{4}&1\\\\12&b\end{array}\implies \cfrac{\quad \frac{3}{4}\quad }{12}=\cfrac{1}{b}\implies \cfrac{\quad \frac{3}{4}\quad }{\frac{12}{1}}=\cfrac{1}{b}\\\\\\\cfrac{3}{4}\cdot \cfrac{1}{12}=\cfrac{1}{b}\implies \cfrac{3}{48}=\cfrac{1}{b}\implies 3b=48\implies b=\cfrac{48}{3}\implies b=16

4 0
3 years ago
Read 2 more answers
2+2=4 you should know this
nadya68 [22]
Ezzzzzzzzzzzzzzzzzzzzz
3 0
2 years ago
Read 2 more answers
Identity each part of speech noun or verb
Elodia [21]
Immigration-Noun
Stereotypes-Noun
Refugee-Noun
Emigration-Noun
Deportation -Noun
Assimilation-Noun
Naturalization-Noun
Ellis island-Noun
Statue of Liberty Noun
5 0
3 years ago
A dartboard has a circumference of 78.5 in.What is the diameter?
satela [25.4K]
2 \pi r = circumference
so,
\frac{circumference}{2 \pi } = radius

it equals 12.49 or 12.5 depending on rounding


I hope this helps!
4 0
3 years ago
Read 2 more answers
In the solution of the equation 5 + 3x = -2x + 9, 2x is added to the equation first. Which of the following should be done next?
Ivanshal [37]
3x + 2x = 9 - 5
5x = 4 
x = 0.8
7 0
3 years ago
Other questions:
  • Prove that for every pair of integers m and n, if n − m is even, then n 2 − m is also even. (You may freely use the fact that th
    11·1 answer
  • Solve the inequality 3(x + 1) + 2(x + 2) > 0.
    8·1 answer
  • Original: $25.80
    10·1 answer
  • Determine if the statement is true or false. Any linear system with more variables than equations cannot have a unique solution.
    13·1 answer
  • if i have 4 gallons 3 quarts - 3 quarts and 1 pint what would be the leftover gallons quarts and pint?
    10·1 answer
  • ¼ x 20<br><br> ⅛ x 56<br><br> 0.16 x 32<br><br> 4.5 x 9.1
    14·2 answers
  • Prove:1/sin²A-1/tan²A=1​
    14·2 answers
  • 8 individually powered machines have motors that use 203 watts each. What is the total wattage used when all machines are runnin
    7·1 answer
  • Which of the graphs below represent a function?
    10·1 answer
  • A salesperson at a jewelry store earns ​5% commission each week. Last​ week, Jarrod sold $640 worth of jewelry. How much did he
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!