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
sergiy2304 [10]
3 years ago
11

Katie has a bag of 15 marbles. There are 3 green, 4 blue, and 5 red marbles. The rest of the marbles are yellow. If Katie random

ly chooses a marble, what is the probability it will be yellow or red?
Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

P(yellow or red)   =8/15

Step-by-step explanation:

There are 15 marbles, 3 green, 4 blue, and 5 red marbles.

3+4+5 = 12

That means there are 15-12 = 3  3 yellow marbles.

3 green,

4 blue

5 red

3 yellow

To find the probability of yellow or red, we add the number of yellow and red marbles together over the total number of marbles

P(yellow or red) = (yellow +red)/ total

                           = (3+5)/ 15

                             =8/15

You might be interested in
Simplify expression (-9)
Anarel [89]

Answer:

-9

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which inequality is equivalent to this one?<br>Y-8≤-2​
Arlecino [84]

Answer:

y-8+8

Step-by-step explanation:

6 0
3 years ago
What is In 7 days, a group of workers can plant 21 acres. What is their rate in acres per day?
FromTheMoon [43]
So do 21/7 to give you how much they do in a day. The answer is three so they do 3 aceres in a day.
8 0
3 years ago
Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?
Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

<em>Robin's Flight</em>

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

take two points from the table

(2,30) and (3,45)

substitute in the formula

m=\frac{45-30}{3-2}

m=\frac{15}{1}

m=15\frac{m}{sec}

<em>Cardinal's Flight</em>

y=10x

m=10\frac{m}{sec}

<em>Blue Jay's Flight</em>

take two points from the graph

(0,0) and (2,20)

substitute in the formula

m=\frac{20-0}{2-0}

m=\frac{20}{2}

m=10\frac{m}{sec}

Compare

The robin flies fastest because its rate is 15 m/s

4 0
3 years ago
How many solutions does the following equation have?
IrinaK [193]
Answer:
Exactly one solution

Explanation:
The first step we need to take to find the answer is to find the value of y.

7(y+3)=5y+8
Expand the parentheses
7y+21=5y+8
Subtract both sides by 21
7y+21-21=5y+8-21
7y=5y-13
Subtract both sides by 5y
7y-5y=5y-13-5y
2y=-13
Divide both sides by 2
2y/2=-13/2
y=-6.5

Now, we plug y back into the original equation.

7(y+3)=5y+8
7(-6.5+3)=5(-6.5)+8
Expand the parentheses
-45.5+21=-32.5+8
-24.5=-24.5

Because both sides of the equation is equal and the equation is true, we can conclude that the equation has one solution.

I hope this helps!
7 0
3 years ago
Other questions:
  • If a number is divisible by 10, then its ones digit is 0 <br> TRUE OR FALSE
    12·2 answers
  • Forms of money in the United States consist of paper money, coins, and _____.
    6·2 answers
  • Help me please!!!!
    5·1 answer
  • Solve for n<br> 2n+3= -3.2
    5·2 answers
  • Find the mean absolute deviation for 78 79 80 80 82 85 90 90 96​
    10·1 answer
  • Point O is the center of the given circle. What is the measure of yz?
    14·1 answer
  • Can some help me?Its due tonight lol
    10·1 answer
  • there are 3 consecutive even integers .if twice the first integer added to the third is 268,228, find all three integers
    12·1 answer
  • Equation <br> 3/8 + 5/12 =
    14·1 answer
  • Helen rolls a dice and flips a coin. <br> calculate the probability
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!