Answer:
For first question, there is 12 marbles at first. So the probability of choosing blue marble is 3/12=1/4. Then marbles are not replaced, the total number is 11. The probability of choosing red is 5/11. So the finally answer is (1/4)*(5/11)=5/44. The same method for second question. Need to notice that you have already choose 1 white marble, so the number of white marble also changed. The answer is (4/12)*(3/11)=1/11.
Step-by-step explanation:
The probability of selecting 2 blue marbles without replacement will be 1/66.
What is probability?Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of occurrences.
There are 4 white marbles, 6 red marbles, and 2 blue marbles.
Once a marble is selected, it is not replaced.
Then the total number of the marbles will be
Total marbles = 4 + 6 + 2
Total marbles = 12
Then the probability of selecting 2 blue marbles without replacement will be
P = 2/12 x 1/11
P = 2/132
P = 1/66
More about the probability link is given below.
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George bought 8 books for 32 dollars and his friend Victor bought the same books for 48 dollars. Who bought the books at lowest rate
Answer:
George bought the books at the lowest rate.
George bought the books at the lowest rate, as he paid 4 dollars per book compared to Victor's 6 dollars per book.
To determine who bought the books at the lowest rate, we need to compare the price per book for George and Victor.
George bought 8 books for 32 dollars, so the price per book for George is 32 dollars divided by 8 books, which equals 4 dollars per book.
Victor bought the same books for 48 dollars, so the price per book for Victor is 48 dollars divided by 8 books, which equals 6 dollars per book.
Comparing the prices per book, we can see that George bought the books at the lowest rate, as he paid 4 dollars per book compared to Victor's 6 dollars per book.
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Bowser ate 4.5 pounds of dog food. That amount is 0.75 of the entire bag of dog food. How many pounds of dog food were originally in the bag?
Answer: 5.25
Step-by-step explanation:
add them
Answer:
6
4.5 is 75 percent of 6
what is 31 divide 8835
and 27 divide 4725
and plss show work thx :)
Answer:
8835 divided by 31 equals
285 with a remainder of 0
4725 divided by 27 equals
175 with a remainder of 0
What is the quotient of 2.592\times 10^72.592×10 7 and 7.2 \times 10^47.2×10 4 expressed in scientific notation?
The quotient, expressed in scientific notation, is:
Quotient = 0.36 × 10³
Given:
(2.592 × 10⁷) / (7.2 × 10⁴)
To find the quotient of 2.592 × 10⁷ and 7.2 × 10⁴ and express it in scientific notation, we divide the coefficients and subtract the exponents.
Quotient = (2.592 × 10⁷) / (7.2 × 10⁴)
Dividing the coefficients, we get:
Quotient = 2.592 / 7.2 = 0.36
Subtracting the exponents, we get:
10⁷ - 10⁴ = 10⁽⁷⁻³⁾ = 10³
In scientific notation, the coefficient should be between 1 and 10, so we can rewrite the expression as:
Quotient = 0.36 × 10³
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PLEASE HELP ME
Given the function f (x) = 3x — 2, what is the value of f (3)?
A.
7
B.
-2
C.
12
D.
25
Answer:
A. 7
Step-by-step explanation:
f(x) = 3(3) - 2
f(x) = 9 - 2
f(x) = 7
good luck, i hope this helps :)
Answer:
B = -2
Step-by-step explanation:
A candy store sells 7 packs of bubble gum for $29.33. How much would it cost to buy 3 packs?
Hi there,
Recall how 7 packs for gum sell for $29.33.
Before we can calculate how much it would cost to sell 3 packs of gum, we must calculate how much it would first cost to sell 1 pack of gum.
The cost of 1 pack of gum is the current total cost divided by the total amount of gum packs you receive at that price.
In this case, the total cost is $29.33, and we receive 7 gum packs at that price.
Therefore, the cost of 1 pack of gum is [tex]\frac{29.33}{7}[/tex], which equates to $4.19.
We now know that each pack of gum costs $4.19.
Hence, 3 packs of gum would cost three times that price.
[tex]4.19 * 3 = 12.57[/tex]
The cost of 3 packs of gum is $12.57.
Hope that helps!
Answer:
$12.57
Step-by-step explanation:
Hope this helps
FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (22pts)
Answer:
It would be a trapezoid!
Step-by-step explanation:
Answer:
I'm sorry if this is wrong but I think...maybe a Rhombus or a Trapezoid?
What is the product 7(-6 1/8)?? Fast please <3
Answer:
-42 7/8
Step-by-step explanation:
got it right
Stephen purchased a guitar, which was originally priced at $80 but
discounted at 25%. He also had to pay 5% sales tax. What amount did
Stephen pay to purchase the guitar? *
Answer:
57 dollars
Step-by-step explanation:
1. Solving the 25% discount
25% = .25
80 x .25 = $20
80 - 20 = $60
** We subtracted 80 from 20 because 25% of 80 is 20 BUT We're taking 25% OFF of 80 because it was a discount.
2. Solving the 5% Tax
5% = .05
$60 x .05 = 3
$60 + 3 = $63
**Adding tax to the discounted price
I hope this helps!
Please answer! I give brainliest when I can! It make my day :-) ASAP :-(
Write a formula for the given measure. Let A represent the area in square feet, and h represent the height in feet. Identify which variable depends on which in the formula.
the area of a trapezoid with base lengths of 7 feet and 11 feet
A=
Answer:
A=1/2h(7+11) or A=1/2h(77)
The area is dependent on the height and the height changes based on the length of both of the bases
Step-by-step explanation:
HELP I NEED HELP ASAP
My brain isn't working right now, please help.
Answer:
Down below, hope this helps!
Step-by-step explanation:
The author's message is that a person cannot predict the future without first learning about the past. The author does this by providing an example of how one wants to read without knowing the letters of the alphabet. Obviously, you can't read without first learning the letters of the alphabet. With the reading example, the author is explaining that just like a person trying to read without learning the alphabet first, a person predicting the future without knowing their history first is doing the exact same thing, it's nearly impossible.
Given the quadratic expression, find the value of C to complete the square. Then write the expression as a binomial squared.
x^2-18x+C
Answer:
[tex](x - 9)^{2} [/tex]
Answer:
81
Step-by-step explanation:
Move −18x, so
x^2+c−18x
To find the c value
c =(b/2)^2
divide the coefficient of x by 2 and square the result.
Divide 18 by 2
(-1⋅9)^2
Multiply −1 by 9
(−9)^2
Raise −9 to the power of 2 and get your answer
=81
The best answer gets brainiest please help!
Instructions: Convert the following problems into slope-intercept form aka y=mx+b
Question:
1. 5x−3y=−15
2. x+y=−7+2x
3. 3(x−4)−6=3y
Answer:
Step-by-step explanation:
1.y=5/3x+5
2.y=x-7
3.y=x-6
Answer
2
Step-by-step explanation:
x+y=-7+2x
Reorder the terms:
y = -7+ 2x
Solving
y = -7 + 2
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.Simplifying
y = 7 + 2x
What is the circumference of the following circle?
Answer: 31.41
Step-by-step explanation:
What type of triangle is formed with sides of length 11, 13, and 15?
Answer:
scalene triangle
Step-by-step explanation:
Mr. Trainer is building a bookcase. He has two wooden boards that are each 8 feet long. He needs to cut the wooden boards into pieces that are 16 inches long. What is the greatest number of 16-inch pieces that Mr. Trainer can cut from the two wooden boards? (1 foot = 12 inches)
Answer:
12
Step-by-step explanation:
Length of one of the boards = 8 feet
Converting to inches
[tex]1\ \text{foot}=12\ \text{inches}\\\Rightarrow 8\ \text{feet}=8\times 12=96\ \text{inches}[/tex]
One cut is 16 inches
So, we divide the length of the board by 16
[tex]\dfrac{96}{16}=6[/tex]
So, one board is cut into 6 pieces.
The other board is also 8 feet long.
So, the number of pieces the other board is cut into is also 6.
Hence, a total of [tex]6+6=12[/tex] pieces of each 16 inches long can be cut from the two boards.
Tyree and four friends go to the movies. Each person buys a movie ticket for $9, a snack for $6, and a drink for $4. Determine the total cost for everyone. PLZ HELP
Answer:
$95
Step-by-step explanation:
(5x9) + (5x6) + (5x4)= 45 + 30 + 20 =95
The new iPhone 12 Pro has a length of 5.2 inches and a width of 2.8 inches.
The iPhone 12 Pro Max is slightly larger and has a length of 6.24 inches.
The length and width of the cell phones are proportional.
What is the width, in inches, of the iPhone 12 Pro Max?
ASAP
Answer:
all you gotta is multiply length times width times height to find the area my guy. its a good strategy my 6th math teacher taught me.
Step-by-step explanation:
lmk if this helped. make sure to rate.
Answer:
nswer:
all you gotta is multiply length times width times height to find the area my guy. its a good strategy my 6th math teacher taught me.
Step-by-step explanation:
lmk if this helped. make sure to rate.
Step-by-step explanation:
please help asap!!! i’ll give brainliest !!!!!!!
Answer:
points needed hope you under stand
Step-by-step explanation:
Stay safe though
please help me ASAP, thank you!
Answer:
a
Step-by-step explanation:
Answer:
it's a
Step-by-step explanation:
- 1 1/2
hope this helped
Jake took out an interest-free loan of $3,814.44 from the bank to buy a car. He paid the bank $200.76 each month until it was paid back completely. Which of the following is true? HELP PLEASE
A.
Jake paid his loan back in 21 months.
B.
Jake paid his loan back in 18 months.
C.
Jake paid his loan back in 20 months.
D.
Jake paid his loan back in 19 months.
Answer:
C
Step-by-step explanation:
Can i have Brain List
Make u the subject of the formula.
5u + 13 = 7t – 2ut
which two are equivalent expressions?
Answer:
4t and t+t+t+t
Plz mark as brainliest
I really need help with this, i dont understand
Your friend is hitting a golf ball. The picture shows a line from your friend to the hole, and also a line to a tree and a line to a sand trap, which she wants to avoid. Use the picture and write a proportion to find the distance from the oak tree to the hole. (Find x.)
Answer:150
Step-by-step explanation: 250/ x = 375/225 equals 150 yards
Calvin went to the candy store. Chocolate candy costs 50 cents each and gum cost 25 cents each. Calvin bought 2/3 as much gum as candy and spent $4. How many candies did he buy? How much gum?
Answer:
candy:6
gum:4
The answer is that because I did systems from a word problem
Can you guys help me out with this? Thanks! <3
Answer:
Step-by-step explanation:
1.Jenna's interest was $480
2. 7 years Mike has saved & eared interest of $280.
what 2 numbers multiply to-48 and add to -22
Answer:
-6 and 8
Step-by-step explanation:
After substituting, what is the first step when evaluating StartFraction 4 y + 9 over 7 EndFraction when y = 8?
Answer:
16
Step-by-step explanation:
because 8 x 2 = 16
Answer:
B
Step-by-step explanation:
did it in edgen