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ratelena [41]
4 years ago
13

You decided to give your friend marbles for his birthday. Since you know he like red marbles better than brown ones, the number

of red marbles in the bag is 4 fewer than 5 times the number of brown marbles. The bag contains 74 marbles. Which system of equations can be used to determine r, the number of red marbles and b, the number of brown marbles?
r + 5b = 4 r + b = 74
r + 5b = 74 r - b = 4
4 - 5b = r 5b + r = 74
5b - 4 = r r + b = 74
Mathematics
1 answer:
zloy xaker [14]4 years ago
5 0
3rd option is the correct answer.
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ASAP Answer this now
gulaghasi [49]
Answer is option B (hope this helps)
3 0
3 years ago
A fair coin is tossed three times in succession. The set of equally likely outcomes is StartSet HHH comma HHT comma HTH comma TH
liq [111]

The probability of getting exactly zero tails is 1/8.

Step-by-step explanation:

When a fair coin is tossed three time, the set of equally likely outcomes is:

S= {HHH,HHT, HTH, THH, HTT, THT, TTH, TTT}

n(S)=8

Let A be the event that there are exactly zero tails which means there are all heads

Then

A= {HHH}

n(A)=1

P(A)=\frac{n(A)}{n(S)}\\=\frac{1}{8}

The probability of getting exactly zero tails is 1/8.

Keywords: Probability, Equally likely events

Learn more about probability at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

5 0
3 years ago
Simplify (write without the absolute value sign)<br><br> |x+3|, if x&gt;2
kodGreya [7K]

Answer:

Step-by-step explanation

Note that if x>2, then x+3>3+2=5. Then x+3>0. Recall that the absolute value function is defined as

|x|=x \text{ if } x\geq 0

|x|=-x \text{ if } x< 0

Since x+3>0, we have that |x+3|=x+3

6 0
3 years ago
Use addition to solve the linear system of equations. Include all of your work in your final answer. \(\left\{ \right.\) 3x-y=6
ad-work [718]

Answer:

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

Step-by-step explanation:

We need to solve the linear system of equations.

3x-y=6 \\y=x-4

We can write second equation y=x-4  as: -x+y=-4

Let:

3x-y=6--eq(1)\\ -x+y=-4--eq(2)

Now, Adding equation 1 and 2

3x-y=6\\ -x+y=-4\\--------\\2x+0y=2\\2x=2\\x=\frac{2}{2}\\x=1

So, we get x = 1

Now, put value of x in second equation to find value of y:

y=x-4\\Put\:x=1\\y=1-4\\y=-3

So, we get y = -3

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

4 0
3 years ago
Brainliest + points!<br><br> Please show your work!
valentinak56 [21]

Find two points where the line intersects with an x and y value that are whole numbers.


The line crosses (0,3) and (-2,-1)


The slope is the change in Y divided by the change in x.

The change in Y is -1 - 3 = -4

The change in x is -2 - 0 = -2


The slope becomes -4 / -2 which simplifies to 2



The answer is D.

7 0
3 years ago
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