Answer:
see explanation
Step-by-step explanation:
(1)
5(x - 3y) + 4(4y - x) - 2(x - y) ← distribute all 3 parenthesis
= 5x - 15y + 16y - 4x - 2x + 2y ← collect like terms
= 3y - x
(2)
3 - 2(x + 2) = 6 ( subtract 3 from both sides )
- 2(x + 2) = 3 ( divide both sides by - 2 )
x + 2 = - 1.5 ( subtract 2 from both sides )
x = - 3.5
solution set = { - 3.5 }
(3)
The median is the middle value of the data in ascending order
1 4 4 7 8 ← in ascending order
↑ median = 4
The mean is the sum of the values divided by the count
mean = [tex]\frac{1+4+4+7+8}{5}[/tex] = [tex]\frac{24}{5}[/tex] = 4.8
The mode is the value which occurs most often
mode = 4
Thus the mode is equal to the median → C
(4)
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (A(1 - a, b + 1 ) and (x₂, y₂ ) = B(1 + a, 1 - b )
m = [tex]\frac{1-b-(b+1)}{1+a-(1-a)}[/tex]
= [tex]\frac{1-b-b-1}{1+a-1+a}[/tex]
= [tex]\frac{-2b}{2a}[/tex] ( cancel 2 on numerator/ denominator )
= [tex]\frac{-b}{a}[/tex] → d
Answer:
d
Step-by-step explanation:
Tina and her friends want to go bowling. Family Bowling Alley charges $1 for shoes and $4 dollars per game. Knight Owl Bowling charges $2 for shoes and $3.75 per game. How many games will it take for the cost of bowling at each alley be the same?
Answer:
Number of games = 4
Step-by-step explanation:
Let the number of games = x
Family Bowling Alley charges $1 for shoes and $4 dollars per game
If x games is played
Cost= 1+4(x)
Knight Owl Bowling charges $2 for shoes and $3.75 per game.
If x games is played
Cost = 2 + 3.75(x)
When the both cost are equal
1+4(x)= 2+3.75(x)
4x-3.75x = 2-1
0.25x = 1
X= 1/0.25
X= 4
Number of games = 4
SOMEONE ANSWER THESE PLEASE!!
1.) why isn’t 9.72 a whole number?
2.) why isn’t -25 a whole number?
Which of the following equations have exactly one solution?
Choose all answers that apply:
A. −5x+12=−12x−12
B. −5x+12=5x+12
C. −5x+12=5x−5
D. −5x+12=−5x−12
Answer:
A, B, & C
Step-by-step explanation:
A: -5x +12 = -12x - 12
+12x +12x
7x + 12 = -12
-12 -12
7x = -24 [Divide both sides by 7 to get x]
x = -24/7
B: −5x + 12 = 5x + 12
-5x -5x
-10x + 12 = 12
-12 -12
-10x = 0 [Divide both sides by -10 to get x]
x = 0
C: −5x + 12 = 5x − 5
-5x -5x
-10x + 12 = -5
-12 -12
-10x = -17 [Divide both sides by -10 to get x]
x = 17 / 10
D: −5x + 12 = −5x − 12
+5x +5x
12 ≠ -12 [The statement is false, so it isn't the correct answer]
What type of number is 0.25726?
A) Rational, specifically an integer
B) Rational, not an integer
C) Irrational
Answer:
B. Rational, not an integer
Can someone please help?
Answer:
odd number
Step-by-step explanation:
as the pattern shows the product of them are odd numbers
Answer:
Hey there!
The product of any two odd numbers is odd.
Hope this helps :)
?
3k12 + 23k4 – 18k? _71
Answer:
Step-by-step explanation:
Something
Is 7,548,123 rational or irrational
Answer:
irrational number
Step-by-step explanation:
Answer:
I'm pretty sure its rational.
Step-by-step explanation:
Rational, I'm pretty sure is like above negative numbers. Irrational is like negative numbers, and yeah...I could be wrong. But I'm sure its rational.
Solve it: 3^x-1=(√3) Plz solve fast
Answer:
x = 3/2
Step-by-step explanation:
3^(x-1)=(√3)
Rewriting sqrt(3) as 3 ^ 1/2
3^(x-1)= 3 ^ (1/2)
The bases are the same so the exponents are the same
x-1 = 1/2
Add 1 to each side
x-1+1 = 1/2 +1
x = 3/2
-25x=300 what does x equal
Answer:
x = -12
Step-by-step explanation:
inverse operation
-25x = 300
divide by -25 on both sides
x = -12
Answer:
x = -12
Step-by-step explanation:
All you have to do is divide 300 by -25.
I hope this helps, have a good night! :)
I can't seem to find the answers or understand how this works.
Answer:
m = 5
n = 12
Step-by-step explanation:
Opposite sides in a parallelogram are equal
so:
m+1 = 6
m = 6-1
m = 5
n is opposite to 12 so n = 12
im2 finding angles using algebra
find: m<BEC
Answer:
m<bec = 60
Step-by-step explanation:
3x +2x +x = 180 (combine like terms)
6x = 180 (divide 180 by 6 to get x alone on one side of the equation)
x = 30
BUT you're not done yet because it asked for m<bec which is 2x so you have to multiply 30(2) which is 60
plz help you only have to recreate them in another way plz
Which point is the center of the circle?
point w
O point X
Opoint Y
O point Z
Answer:
The center of the circle is point X.
Step-by-step explanation:
It is because it is at the center of the circle.
Hope it helps you:)
the day before the day before yesterday is three days after Saturday. what day is it today?
Answer:
Friday
Step-by-step explanation:
We can use logic/equations to solve this problem.
Let's create the equation:
the day before the day before yesterday = saturday + 3 days
We can simplify the right side down.
3 days after Saturday is Tuesday.
So:
the day before the day before yesterday = Tuesday
The day before the day before yesterday is the same as 3 days before today. So:
3 days before today = Tuesday
This means that today is 3 days after Tuesday. 3 days after Tuesday is Friday, so today is a Friday.
Hope this helped!
angela took 104 selfies last week. 1/4 of the selfies taken include her BFF Brianna. How many selfies include Brianna?
Answer:
I don't really know because I am dumb sorry
Answer:
26
Step-by-step explanation:
at 7:00 am the temperature in wilton was -6 degrees. by 8:00 am the temperature was 2 degrees. what is the difference in the temperature between 8:00 am and 7:00 am?
Answer:
Step-by-step explanation:
at 7 the temperature=-6
at 8 the temperature=2
difference=8 degree
Answer:
- 8°
Explanation:
→ We write the data problems.
→ in Wilton - 7:00 am ⇒ - 6°
8:00 am ⇒ 2°
What is the difference in the temperature between 8:00 am and 7:00 am?
- 6° - 2° = - 8°
Solve y – 7 > 3 + 2y A) y -10 D) y > -10
Answer:
D. [tex]-y > 10[/tex]
Step-by-step explanation:
First, move the variable (+ 2y) to the left-hand side and change its sign.
[tex]y - 2y - 7 > 3[/tex]
Then, move the constant (+ 7) to the right-hand side and change its sign.
[tex]y - 2y > 3 + 7[/tex]
Then, collect the like terms (y - 2y)
[tex]-y > 3 + 7[/tex]
Finally, add the numbers (3 + 7). That will get you your final answer.
[tex]-y > 10[/tex]
Solve for c .
A(c+b)=d
answer choices are in the pic
Answer:
A(c+b)=d.
Ac+Ab=d.
Ac=d-Ab.
Divide through by A.
c=d-ab/a.
Option A.
Steps to solve:
a(c + b) = d
~Distribute
ac + ab = d
~Subtract ab to both sides
ac = d - ab
~Divide a to both sides
c = d-ab/a (Option 1)
Best of Luck!
- = 0.393 as a fraction?
Answer:
The answer is 393/1000
Step-by-step explanation:
Answer:
131/333 is the correct answer
Step-by-step explanation:
solve for x need help asap
Answer:
the answer is 23
Step-by-step explanation:
3x=69 ( vertically opposite angle)
x=69/3
x=23
Hope this helps. :)
6 + ( - 3 ) is ___ units from 6, in the ___ direction.
Answer:
6+(-3) is 3 units from 6 in the right direction
Step-by-step explanation:
6 + ( - 3 ) is 3 units from 6, in the right direction.
What are integers?An integer is the number zero, a positive natural number or a negative integer with a minus sign. The negative numbers are the additive inverses of the corresponding positive numbers.
Given:
6 + ( - 3 ) is ___ units from 6, in the ___ direction.
as we know that 6 +(-3) = +3 units
So, -3 is 3 units away but the direction depend on the sign between the numbers.
Then, according to the sign the direction is on right side.
Hence, 6 + ( - 3 ) is 3 units from 6, in the right direction.
Learn more about integers here:
https://brainly.com/question/1768254
#SPJ2
9 + (–9) = 0 what is the property
Answer:
I think it's "inverse property of addition"
hope this helps :3
A damaged carpet which cost $180 when new, is sold for $100. What is the percentage loss?
44,(4) %
Step-by-step explanation:$180 ......... 100%
$80 ............. x %
x = 80×100/180 = 8000/180 = 44,(4) %
the percentage loss 44,(4) %
point w is on line segment VX. Given vx=4x, vw=3x and wx=5 determine the numerical length of vx
Answer:
Numerical length of VX = 20
Step-by-step explanation:
Given that VX is a line segment which has a point W on it.
Kindly refer to the attached diagram for the given points.
We are also given the following dimensions:
[tex]VX=4x\\VW=3x\ and \\WX=5[/tex]
To find:
Numerical length of VX = ?
Solution:
As we can clearly see from the attached diagram:
[tex]VX = VW + WX[/tex]
Putting the given values:
[tex]4x=3x+5[/tex]
Now, let us solve for [tex]x[/tex] and then will put the value of [tex]x[/tex] back to find the numerical value of VX.
[tex]\Rightarrow 4x-3x=5\\\Rightarrow x =5[/tex]
Now,
[tex]VX = 4 \times x = 4\times 5 =\bold{20}[/tex]
Therefore, numerical value of VX is 20.
3.- El maestro Juanito se durmió el domingo a las 9:34 pm y se despertó a las 6:35 am para
estar puntal a sus clases. ¿Cuántas horas durmió?
Answer:
durmio 9 horas
Step-by-step explanation:
si cuentas a como va el reloj (de 1 a 12 y de am a pm) y empiesas desde Las 6 se va hasta que llegue a 12, empieza a ser 1 otravez.
Monique had $14.33 in her walllet. Her mother gave her $5.50 and she found a quarter on the floor. She owes her friend $20. Does Monique have enough money to pay her friend back? If so how much does she have left over? If not how much money does she need?
Answer:
yes she has enough money to pay her friend back
Step-by-step explanation:
14.33
5.50
+ 0.25
$20.08 this what she has and she will have 8 cents left over after she pays her friend
6. A supersonic jet flew 2.000 km to the east in 0.5 hours. Moving at a
constant velocity, it passed an airplane that was traveling at 903 kilometers
per hour. What was the jet's velocity?
Answer:
4000 km/h to the east
Step-by-step explanation:
The supersonic jet's velocity was ...
2000 km/(0.5 h) = 4000 km/h . . . to the east
The function h(x) = –x5 + 12x is an odd function. Which transformation of h(x) results in an odd function? A.h(5 – x) B.1 + h(x) C.h(x + 8) D.–6h(x)
Answer:
D
Step-by-step explanation:
just took it got it right
Answer:
its D
Step-by-step explanation:
y +2=5
What is the answer?
Answer:
y = 3
Step-by-step explanation:
[tex]y + 2 = 5 \\ y = 5 - 2 \\ y = 3[/tex]
Answer:
y = 3
Step-by-step explanation:
Subtract 2 from each side, so it now looks like this: y = 3It takes a bus 6 hours to take a trip. The train takes only 4 hours to make the same trip. The train travels at a rate of speed that is 25 mph more than the speed of the bus. What is the rate of the bus and the rate of the train? State what x represents, state the equation, and then state the answer.
Answer:
x represents the trip distance.
x = 300 miles
Rate of bus = 50 mph
Rate of train = 75 mph
Step-by-step explanation:
Let the trip distance be x miles.
[tex] \because \: speed = \frac{distance}{time} \\ time \: taken \: by \: bus \: to \: complete \: \\ the \: trip \: = 6 \: hours \\ \therefore \: speed \: of \: bus = \frac{x}{6} \: mph \\ \\ time \: taken \: by \: train \: to \: complete \: \\ the \: same \: trip \: = 4 \: hours \\ \therefore \: speed \: of \: train = \frac{x}{4} \: mph \\ \\ \because \: \: speed \: of \: train \\ =speed \: of \: bus \: + 25 \: mph \\ \therefore \: \frac{x}{4} = \frac{x}{6} + 25 \\ \\ \therefore \: \frac{x}{4} - \frac{x}{6} = 25 \\ \\ \therefore \: \frac{6x - 4x}{4 \times 6} = 25 \\ \\ \therefore \: \frac{2x}{24} = 25 \\ \\\therefore \: \frac{x}{12} = 25 \\ \\ \implies \: x = 25 \times 12 \\ \implies \: x =300 \: miles \\ \\ rate \: of \: bus = \frac{x}{6} = \frac{300}{6} = 50 \: mph\\ \\ rate \: of \: train = \frac{x}{4} = \frac{300}{4} = 75 \: mph[/tex]