Answer:
x = 18 , y = 15
Step-by-step explanation:
Given the 2 equations
3x - 2y = 24 → (1)
x + 2y = 48 → (2)
Adding the 2 equations term by term will eliminate the y- term
4x + 0 = 72
4x = 72 ( divide both sides by 4 )
x = 18
Substitute x = 18 into either of the 2 equations and solve for y
Substituting into (2)
18 + 2y = 48 ( subtract 18 from both sides )
2y = 30 ( divide both sides by 2 )
y = 15
If Alfie tosses the paper cup more times, what is the expected number of times that the cup will land on its side?
Question:
Alfie tossed a paper cup in the air 150 times and recorded the side it landed on.
Right side up = 60 Upside down = 53 Side = 37
If Alfie tosses the paper cup 100 more times what is the expected number of times the cup will land on its side?
Answer:
The expected number of times the cup will land on its side is 25 times
Step-by-step explanation:
Given
[tex]Right = 60[/tex]
[tex]Upside\ down = 53[/tex]
[tex]Side = 37[/tex]
Required
First, we calculate the probability of landing on side
[tex]P(Side) = \frac{n(Side)}{Total}[/tex]
[tex]P(Side) = \frac{37}{150}[/tex]
[tex]P(Side) = 0.247[/tex]
Next, we calculate the expected value; E(x) using:
[tex]E(x) = n * P(x)[/tex]
When tossed 100 more times:
n = 100 and P(x) = P(Side) = 0.247
So:
[tex]E(x) = 100 * 0.247[/tex]
[tex]E(x) = 24.7[/tex]
[tex]E(x) = 25[/tex] --- approximated
Hence, it is expected that it will land on its side 25 times
Please help out and make sure to show your work please
Answer:
80 in
Step-by-step explanation:
To find the whole thing: 12 * 12 = 144
To find one square: 144/9 = 16
To find shaded areas: 16 * 5 = 80
Hope this helps =]
In 2.5 seconds, a projectile goes from 50 m/s to 800 m/s, heading southwest. What is the acceleration of the projectile?
Answer:
i dont know
Step-by-step explanation:
i dont know
1.To make paper mache, the art teacher mixes water and flour. For every 2
cups of water, she needs to mix in 3 cups of flour to make the paste. Which
of the following shows an equivalent ratio for the ratio of water to flour? I need an answer quick!!!!
Answer:
1:1.5 or 2:3 or 4:6 or 8:12, etc. is the ratio
Step-by-step explanation:
The first one is done and the options for number four are:
w(2w+12)=160
2w^2+12w-260=0
2w^2+12w=260
w^2+6w-130=0
Answer:
Step-by-step explanation:
Part A
w² + 6w + c = 130 + c
w² + 2(3w) + c = 130 + c
To make left side of the equation a perfect square we will replace c by (3)².
w² + 2(3w) + 3² = 130 + c
[By formula → a² + 2ab + b² = (a + b)²]
w² + 2(3w) + 9 = 130 + 9
Therefore, c = 9 will be the answer.
Part B
From part A,
(w + 3)² = 139
Option (2) and Option (6) are the correct options.
Part C
w + 3 = √139
w = 11.79 - 3
w = 8.79
w ≈ 8.8 inches
Please help:) I really need help
Answer:
.translation(x, y) →(x+h, y+k)
reflection of (x,y)→(−x,y) on y-axis
reflection of (x,y)→(x,-y) on x-axis
Can someone help me with this picture? (Ignore 45,15)
Answer:
h = 5 (3+p)
Step-by-step explanation:
3 hrs = $45 + $15p
h = 45+15p / 3 (This was supposed to be a fraction)
h = 15 (3+p)/ 3 (This was supposed to be a fraction)
h = 5 (3+p) (You might use different variables from me)
hrs = hours
p = per person
Brainlist pls!
If pears cost $0.65, how many pears could you buy if you have $5.20 to spend? Write the equation you would use to answer the question. also, how was you alls day?
Answer:
0.65x = 5.20, 8 pears
Step-by-step explanation:
We put x beside 0.65 because that is the unknown number of pears we can buy with $5.20. To find out how many pears you could buy, we just solve for x. So let's do it!
0.65x = 5.20
x = 8
8 pears
Hope that helps, let me know if you need more help or have questions! :)
Please help im desperate :)
Answer:
-2
Step-by-step explanation:
You can see that the line is passing through the negative point, which is -2.
I hope this helped!
~natasha
NEED HELP WITH 1-8 ASAP I WILL GIVE BRAINLIST
Answer:
I will give u the steps undunderneath
work out volume by :
base times length times height
so question 1 is : 4 times 1 times 6 which is 24ft²
same goes the rest
hope this helps. can I have brainliest please.
I need help with this like right now please .
Answer:
B - 55
Step-by-step explanation:
1/3 HB=T solve for B
Answer:
yes I agree B=3t/h
Step-by-step explanation:
hope this helps :)
A student plays a total of 20 rounds of rock paper scussordbhe wins 75% of them. How many rounds did he win
Answer:
15 rounds
Step-by-step explanation:
Change 75% into a decimal (0.75).
Multiply 20 by 0.75.
When doing so, you get 15 rounds.
To check this: 15/20 = 3/4 = 0.75
Answer:
if that student is scussordbhe then they won 15 rounds, if they arent they won 5.
Step-by-step explanation:
In the circle below, Ab and CD are chords intersecting at E if AE=5, BE,12, and CE=6, what is the length of DE
Answer:
DE = 10
Step-by-step explanation:
Here, we want to find the value of DE
we use the intersecting chord principle
That will be;
CE * ED = AE * BE
we have;
6 * DE = 5 * 12
DE = (5 * 12)/6
DE = 5 * 2
DE = 10
Please can someone solve thiss !!! T~T
I have no idea what its saying and Im AlMosT doNE :(
Please help , it would mean so much
Answer:
y=2x
Step-by-step explanation:
Answer:
y=2x
is the answer answer
if a store is offering 20% discount on all items. is there a proportional relationship between the original price of an item and its price after the discount
Answer:
A store is offering a 14% discount on all items. Write an equation relating the sale price S for an item to its list price L.
Step-by-step explanation:
if x+3/3=y+2/2 then x/3 =
Answer:
x/3=y/2
Step-by-step explanation:
Multiply both sides of the equation by the Common Denominator 6
2x + 6 = 3y + 6
2x = 3 y
x/3 = y/2
If a circle is divided into 30 equal parts, what will be the measure of the angle of each part???
Answer:
12 degrees
Step-by-step explanation:
Total angle in a circle = 360 degrees
If a circle is divided into 30 equal parts
measure of each part = Total angle in a circle/Total parts
measure of each part = 360/30
measure of each part = 12 degrees
Hence the measure of each part is 12 degrees
What is 24x 7+ 6+ 2, Thx!
Answer:
176
Step-by-step explanation:
Remember to follow the order of operation, PEMDAS.
PEMDAS stands for:
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
~
First, solve the multiplication:
24 x 7 = 168
Next, add straight across:
168 + 2 + 6 = 170 + 6 = 176
176 is your answer.
~
57 x 8.50 = 484.50 please show me the formula in doing it
Answer: 57 x 8.50 = 484.50
Step-by-step explanation:
Answer: 484.50
Step-by-step explanation:
Multiply without the decimal first:
57 x 850 = 48,450
Now you add the decimal to equation.
You move the decimal as how many numbers there are behind it.
84(.)50(.)
When you count to put the decimal count it from right to left.
484.50
6/7 times 5/9
HELP PLS I GIVE LOTS OF POINTS
Answer:
I got 30/63
Step-by-step explanation:
Was this the answer you were looking for?
HELP ME PLZZZZZZZZZZZZZZZZZ
Answer:
254.3
Step-by-step explanation:
The formula for the area of a circle is A = pi(r^2).
Shown in the picture is the diameter of the circle. To find the radius, or R, simply divide 18 by 2. The definition for a radius is basically half of the diameter.
Now...
3.14(9^2) = 254.34
Round to the nearest tenth: 254.3
Which table represents viable solutions for y = 5x, where x is the number of tickets sold for the school play and y is the amount of money collected for the tickets?
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries negative 100, negative 25, 40, 600. The second column is labeled money collected (y) with entries negative 500, negative 125, 250, 3000.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries negative 20, 20, 100, 109. The second column is labeled money collected (y) with entries negative 100, 100, 500, 545.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 0, 10, 51, 400. The second column is labeled money collected (y) with entries 0, 50, 255, 2000.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 5, 65, 80, 200. The second column is labeled money collected (y) with entries 25, 350, 400, 1000.
Third table is true with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 0, 10, 51, 400 and the second column is labeled money collected (y) with entries 0, 50, 255,2000.
Here, the equation is given as;
y = 5x
Where, x is the number of tickets sold for the school play and y is the amount of money collected for the tickets.
What is linear equation?
A linear equation is an algebraic equation of the form y = mx + b
involving only a constant and a first order (linear) term.
Now, we have the following equation;
y = 5 x
For finding the table that complies with this restriction and also have the corresponding values for x and y.
The third table complies with the given condition and has correct values for the given variables;
⇒ x = 0 then y = 0
⇒ x = 10 then y= 50
⇒ x = 51 then y = 255
⇒ x = 400 then y = 2000
Clearly, Third table is true with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 0, 10, 51, 400 and the second column is labeled money collected (y) with entries 0, 50, 255,2000.
Learn more about the Linear equation visit:
https://brainly.in/question/5130012
#SPJ6
Answer:
Step-by-step explanation:
Which table represents viable solutions for y = 5x, where x is the number of tickets sold for the school play and y is the amount of money collected for the tickets?
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries negative 100, negative 25, 40, 600. The second column is labeled money collected (y) with entries negative 500, negative 125, 250, 3000.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries negative 20, 20, 100, 109. The second column is labeled money collected (y) with entries negative 100, 100, 500, 545.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 0, 10, 51, 400. The second column is labeled money collected (y) with entries 0, 50, 255, 2000.
A 2-column table with 4 rows titled School Play Tickets. The first column is labeled tickets (x) with entries 5, 65, 80, 200. The second column is labeled money collected (y) with entries 25, 350, 400, 1000.
Mark this and return
add or subtract to simplify IHML
Answer:
A) 6x^2 + 8x
Step-by-step explanation:
2x^2 + 4x^2 = 6x^2
7x + x = 8x
6x^2 + 8x
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
-XxDeathshotxX
PLEASE HELP ME ANSWER THIS PLEASE PLEASE PLEASE
Answer:
see explanation
Step-by-step explanation:
(a)
The turning point is the vertex of the graph
The coordinates are (2, - 4 )
(b)
The zeros are the values of x where the graph crosses the x- axis
The graph crosses the x- axis at
x = - 1, x = 5 ← zeros
(- 1, 0 ), (5, 0 ) in coordinate form
In the triangle below, what is the cosine of 60°?
CAN SOMEONE HELP ME WITH THIS!!
Answer:
Number of dogs = 6
Number of burgers = 11
Step-by-step explanation:
Number of dogs = x
Number of burgers = 2x - 1
Cost of a dog = $ 1.50
Cost of 'x' dogs = 1.5x
Cost of a burger = $ 2
Cost of (2x - 1) burger = (2x -1) * 2 = 2x *2 - 1*2
= 4x - 2
Total amount collected = $ 31
1.5x + 4x - 2 = 31 {add 2 to both sides}
1.5x + 4x = 31 + 2
1.5x+ 4x = 33
5.5x = 33
x = 33/5.5
x = 6
Number of dogs = 6
Number of burgers = 2*6 - 1 = 12 - 1 = 11
4b+5=1+5b
Anyone know it ??
Answer:
b = 4
Step-by-step explanation:
4b+5=1+5b
1️⃣Rearrange terms
4b+5=1+5b
4b+5=5b+1
2️⃣Subtract 5 from both sides of the equation
4b+5=5b+1
4b+5-5=5b+1-5
3️⃣Simplify
4b=5b-4
4️⃣Subtract 5b from both sides of the equation
4b=5b-4
4b-5b=5b-4-5b
5️⃣Simplify
-b=-4
6️⃣Divide both sides of the equation by the same term
-b=-4 subtract -1
7️⃣Simplify
b=4
Answer: b=4
Done ✔
The graph below shows the #tal distance, in miles, traveled by a towboat over time,
in hours.
AVERAGE SPEED
OF TOWBOAT
21.00
Total Distance (miles)
15.75
10.50
5.25
0 1 2 3 4
Time (hours)
Which statement best describes the meaning of the coordinates of point Fon
the graph?
It shows the unit rate of the graph in hours per mile
Answer:
it shows the unit rate of the graph in miles per hour.
Step-by-step explanation:
Answer:
It shows the unit rate of the graph in miles per hour
Step-by-step explanation:
...
b) Evaluate the algebraic expression 2x2 + 5x +6 if x is equal to (-1).
Step-by-step explanation:
if x is equal to - 1
Then
2x² + 5x + 6
= 2* ( -1)² + 5 * (- 1) + 6
= 2 - 5 + 6
= 8 - 5
= 3
Hope it will help :)❤
Answer:
if x=-1
then
2(-1)2+5(-1)+6
2(1)+5(-1)+6
2-5+6
X=+3