A bag contains one green marble, two yellow marbles, four blue marbles and five red marbles. How many blue marbles would you need to add to make the probability of drawing a blue marble 1/2?
Answer:
You would have to add 4 blue marbles
Step-by-step explanation:
there are a total of 12 marbles, 4 of them being blue.
If you add 4 blue ones, there would be a total of 16 marbles and 8 of them would be blue.
8/16 = 1/2
Therefore, 4 blue marbles need to be added for the chance to draw one to be 1/2 or 50%
Answer:
Step-by-step explanation:
Since there is 1 green, 2 yellow, 4 blue, and 5 red we start with 12 marbles. For the probability of picking a blue to be 1/2 we must satisfy.
(b+x)/(12+x)=1/2. (Where x is the number of blue marbles added)
2(b+x)=12+x
2b+2x=12+x
2b+x=12
x=12-2b, since we started with 4 blue marbles
x=12-2(4)
x=12-8
x=4
So we would need to add 4 blue marbles to make the probability of picking a blue 1/2.
Goldfish care manuals recommend that you have only 12 goldfish per 10 gallons of water. If Alex owns a 40 gallon tank that has a population density of 1.75 goldfish/gallon, is Alex meeting the recommendations?
Answer:
Pretty sure he is..
Step-by-step explanation:
Cus yes
epicly
Which graph represents − 12 x − 6 y ≥ 5
Answer:
its 12
Step-by-step explanation:
Your answer is the image below.
To graph this inequality, Rearrange the Y so everything right is now left, and then plot Y on a number line. Lastly, shade or leave the circle open or closed.
Greater than or less to = OPEN circle (Not shaded)
Greater and/or less than or equal to = CLOSED circle (Shaded)
anyone have the answer to this?
Answer:
5+4÷8-7x1
Just do out the equations :)
The point (-5, 10) undergoes a translation of 10 units right and 5 units down.
What are the coordinates of the new point?
Answer:
Translation 10 units right: (-5, 10) --> (5, 10)
Translation 5 units down: (5, 10) --> (5, 5)
(5, 5) is the final answer
Let me know if this helps!
Help fast please it’s due today
Answer: B,C,D,E
Step-by-step explanation: do the abc's its easy you should try.
Simplify completely 3x + 18 / 18
1.) x
2.) 3x
3.) x + 6 / 6
4.) x + 18 / 6
Answer:
3(x + 6)/18
= x + 6 /6
Step-by-step explanation:
hope this helps you
Write yes or no if the value given makes the equation true.
1. w – 2 = 5; w = 7
2. 5t = 15; t = 4
3. x + 8= 10; x = 945
4. 5 = x + 3; x = 2
Answer:
1. yes
2.no
3.no
4.yes
Step-by-step explanation:
just use division, addition, subtraction
Answer:
1. yes
2. no
3. no
4. yes
Step-by-step explanation:
1. substitute w with 7 --> (7) - 2 = 5 --> 5 = 5; true
2. substitute t with 4 --> 5(4) = 15 --> 20 does not = 15; false
3. substitute x with 945 --> (945) + 8 = 10 --> 953 does not = 10; false
4. substitute x with 2 --> 5 = (2) + 3 --> 5 =5; true
Find the slope of the line through the points (2, 16) & (18, 1)
Answer:
-15/16
Step-by-step explanation:
A person places $1690 in an investment account earning an annual rate of 7.2%,
compounded continuously. Using the formula V = Pert, where V is the value of the
account in t years, P is the principal initially invested, e is the base of a natural
logarithm, and r is the rate of interest, determine the amount of money, to the
nearest cent, in the account after 8
years.
Answer:
Step-by-step explanation:
[tex]V=Pe^{(rt)}\\ \\ V(8)=1690e^{(.072(8))}\\ \\ V(8)=\$ 3006.36[/tex]
Dairy bar 25 kg of fish flavored cat food and 35 kg of chicken flavored cat food for the cat rescue center he's going to divide the cat food and two packets of 300 g how many packets will he make
Answer:
200 packets
Step-by-step explanation:
According to the scenario, calculation of the given data are as follows,
Fish flavoured = 25kg or 25,000 gm
Chicken flavoured = 35 kg or 35,000 gm
Packets size = 300gm
So, we can calculate the number of packets by using following formula,
Number of packets = (25,000gm + 35,000gm) ÷ 300gm
Number of packets = 60,000 gm ÷ 300gm
Number of packets = 200 packets
Help me with this!!!!
Answer: 3.5
Step-by-step explanation:
By definition, a midpoint is the point that splits a line,ray, or segment into two equal parts.
3.5 is exactly half way in between 3 and 4
If
f (x) = x^2 - 4
what is the average rate of change from x = 3 to x = 5?
Answer:
The average rate of change is 8
Step-by-step explanation:
Mathematically, we have the average rate of change over a given interval as;
f(b) - f(a)/b-a
Where the interval is [a,b]
With respect to this question, a = 3 and b = 5
f(a) = f(3) = 3^2 - 4 = 9-4 = 5
f(b) = f(5) = 5^2 - 4 = 25-4 = 21
Thus, the average rate of change over the intervals will be;
(21-5)/(5-3) = 16/2 = 8
Lisa has 3 quarts of milk. Sanjay has 12 points of milk. who has more?
Answer:
Lisa because quarts are way bigger there pounds and points of milk isnt a thing.
Step-by-step explanation:
"Solve the linear equation for y" 14x= -5y (-) 11
Answer:
y = -4/5x - 11/5
Step-by-step explanation:
4x = -5y (-) 11
4x = -5y - 11
-5y = 4x + 11
5y = -4x - 11
y = -4/5x - 11/5
I need help on this!
Answer
X= 6
Y= 19
Step-by-step explanation:
2x+1+y-5+3x-4+x+6
6x+y+19
6x+y19
X= 6
Y= 19
6) Write an expression that is equivalent to 3(7 + x).
3(7+ x) =___
+___
?
Answer:
21 + 3x
Step-by-step explanation:
hope this helps
how much sugar should farid use for 1/2 of a batch of muffins
Answer:
3/8
Step-by-step explanation:
.
Answer: the answers would be 3/8
Step-by-step explanation:
Got it right
X - Зу = -2
X - Зу = 16
PLEASE HELP URGENT WILL MARK AS BRAINLIEST PLUS POINTS!!
Answer:
22 (4th option)
Step-by-step explanation:
The side lengths are useless.
Pay attention to the angles.
<QRP=68 degrees.
Vertical angles make it so <SRT=68
180-90(right angle)-68=22 degrees
Which of the following is not a measure of the center of a data set?
(1) the median
(2) the mean
(3) the range
(4) the mode
Answer:
i think its 4.
Step-by-step explanation:
The Range is not used to measure of the center of a data set.
Here,
We have to find, which is not a measure of the center of a data set.
What is Range?
The range of a set of data is the difference between the largest and smallest values.
Now,
Median is the middle number, when data is arranged in numerical order.
Mean is the average of a data set.
Mode is the data item the appears most frequently.
Hence,
Median, Mean, Mode all are used to measure of the center of a data set.
So, Only The Range is not used to measure of the center of a data set.
Option 3 is true.
Learn more about the Range visit:
https://brainly.in/question/38111608
#SPJ2
Solve the inequality. Graph the solution.
4/5 ≤ m - 1/5
Answer:
1 < m
Step-by-step explanation:
add the 1/5 over and simplify
just curious, is anyone here really good at math but a bit slow at other subjects? if so we could exchange help in the form of complete work! ;D
like assignment for assignment.
i have insta, snap, discord etc im currently in grade 8 but at a highschool math level(American public school)
Answer:
Im horrible at math but we could still help each other
Step-by-step explanation:
I'm not taking any subject, but if you need help in math here I am :)
- 1/5 + 3/5 I know it looks easy but show the work!
(a-3)*(6-a)
Make this easier.
64/374/5 * 20634 + 23694 - 1634 * 51
I hate this question a lot
Answer:
-58933.81
Step-by-step explanation:
Where do the parentheses go? So messy
Answer:
i am not sure how to solve that sorry
Step-by-step explanation:
.
The measure of a central angle is 115°. The intercepted arc created by this central angle is a ___ arc.
Answer:
The intercepted arc is 115° b/c the measure of a central angle is equal to the measure of its intercepted arc
PLS HELPPPPPPPPPP PLSSSSSS ASAP
Answer:
3 i think
uhh I don't know, I forgot about this
Write each number in standard form.
1.6 × 10 -3
the answer in standard form is 10+3
Answer:
Likely 0.0016
Step-by-step explanation:
Assuming you meant 1.6 × [tex]10^{-3}[/tex]:
0.0016
Assuming you actually did mean 1.6(10) - 3:
16 - 3 = 13
Can someone help me out please please please
Answer:
y= x
Step-by-step explanation:
Because (x, y) -> (y, x)