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
kati45 [8]
3 years ago
11

A bag contains 100 marbles which are red, green, and blue. Suppose a student randomly selects a marble without looking, records

the color, and then places the marble back in the bag. The student has recorded 7 red marbles, 2 green marbles and 11 blue marbles. Predict how many red marbles are in the bag.
Mathematics
2 answers:
Orlov [11]3 years ago
7 0

Answer:

35 red marbles

Step-by-step explanation:

The total number of marbles the student recorded is 20

Now we have to make a ratio of red to the total number of marbles

That would be 7 : 20

After this, there will be a new ratio which is x : 100

Lastly we will solve for x making the equation 20x = 700, x = 35

ra1l [238]3 years ago
6 0

Answer:

35 red marbles

Step-by-step explanation:

So we can put the different color marbles in a ratio. So 7:2:11. If we add all of those up we get 20. We do 100/20 to get 5. Each number in the ratio is equivalent to 5 marbles. Then we do 7*5 to get 35. We can check our work by doing, (7*5) + (2*5) + (11*5) = 100. And it does equal 100 so the answer is correct.

You might be interested in
To make a specific shade of green paint, Timia mixes 2 cups of blue paint with 10 cups of yellow point. How many cups of yellow
7nadin3 [17]

Answer:

1 cup of blue paint required 5 cups of yellow paints

<em />

Step-by-step explanation:

Given

2 cups of blue = 10 cups of yellow

Required

Determine the number of cups of yellow for 1 cup of blue paint

The given parameter shows a linear relationship between paints of blue and paints of yellow

We have:

2 cups of blue = 10 cups of yellow

Multiply both sides by 0.5

0.5* 2 cups of blue = 0.5* 10 cups of yellow

1 cup of blue = 5 cups of yellow

Hence;

<em>1 cup of blue paint required 5 cups of yellow paints</em>

7 0
3 years ago
The surface area of the square pyramid is 96 square inches. Find the value of x.
anyanavicka [17]

Answer:

X is 24.

Step-by-step explanation:

Divide the surface area by 4

5 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the points (4, -1) and
Verizon [17]

Answer:

y= x/2-3

Step-by-step explanation:

4 0
3 years ago
Eight less than four times the number c is twenty.<br> What is the value of c?
olganol [36]

Answer:

c=7

Step-by-step explanation:

The problem says that 8 less than 4 times c is less than twenty, so we can first show 8 less than 20.

4c -( I did this because it said 4 times the number c)

Then, we show 8 less than that.

4c-8

It says it is twenty, and that means it equals twenty.

4c-8=20

Now we solve!

4c-8=20

   +8  +8

*we add 8 to both sides*

4c=28

*we divide both sides by 4 since we want to isolate c*

c=28/4

c=7

I hope this helped!

6 0
4 years ago
Read 2 more answers
IB/AP Mathematice: Logorithms
Anuta_ua [19.1K]
1. 5^2 = 25
2. 2^6 = 64
3. 25^(1/2) =5
8 0
3 years ago
Other questions:
  • Translate the sentence: “Twice x is 5” to an equation.
    8·1 answer
  • Need help pleaseeee!!!
    10·1 answer
  • Factor:<br><br> 11x^2+35x+6<br><br> I dont know how to do this one either. Lol.
    6·2 answers
  • 17. Ace Rent a Car charges a flat fee of $15 and $0.23 a mile for their cars. Acme Rent a Car
    8·1 answer
  • Which inequality is shown above?
    13·1 answer
  • Which of the following did Columbus NOT bring back with him from his voyages to the "New World"?
    6·1 answer
  • Point R on the coordinate grid below shows the location of a car in a parking lot. A second car needs to park 5 units above R to
    15·2 answers
  • FIND EQUATION OF LINE
    9·1 answer
  • Can someone help me?
    9·1 answer
  • The segment below is dilated by a scale factor of 22 to form I ′J ′ What is the measure of I ′J ′ ?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!