Answer:
K = 3/2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
k−9=5(k−3)
k+−9=(5)(k)+(5)(−3)(Distribute)
k+−9=5k+−15
k−9=5k−15
Step 2: Subtract 5k from both sides.
k−9−5k=5k−15−5k
−4k−9=−15
Step 3: Add 9 to both sides.
−4k−9+9=−15+9
−4k=−6
Step 4: Divide both sides by -4.
-4k/-4 = -6/-4
K = 3/2
Find the distance covered by a car travelling at 65 65-kmh-1 for 7 hours.
Answer:
1105km
Step-by-step explanation:
d=s×t
=65kmh^-1×7
=1105km
solve for x: 3/4x5/4=4x
Answer:
x = 0
Step-by-step explanation:
PLZZZ HELPPP THIS IS DUE!!
This is a story problem. You may use the method of your choice to solve the problem. (substitution, combination, elimination )
The sum of 2 numbers ( x and y ) is +12
The difference of the same 2 numbers is -4
1. Which method will you use and why?
2. How will you set up the equation needed to solve?
3. What is the solution expressed as an ordered pair? (x,y)
Answer:
y=3x-2..... i
x-y=4...... ii
x-4=y
Substituting the value of y in equation i,
x-4=3x-2
2-4=3x-x
-2=2x
x=-1.
From ii,
-1-4=y
y=-5.
x=-1, y=-5
Step-by-step explanation:
brainest please
Convert 173 Degrees Celsius to Kelvin. Type your answer in number form without the K symbol.
Answer:
446.15
Step-by-step explanation:
C + 273.15 = K
So 173C + 273.15 = 446.15K
Solve for t.
-t = 9(t-10)
pls help
Answer:
9
Step-by-step explanation:
Wally counted 200 pennies from his piggy bank. He kept 80% of them. How many pennies did Wally keep?
Answer:
I believe he kept 160 pennies.
Step-by-step explanation:
10% of 200 is 20 (200 divided by 10) so 20% is 40 pennies. 200 minus 40 is 160 (pennies)
which number is 10,000 greater than 23,879?
a. 13 879 b. 23 879 c. 33 879 d.13 779
Answer:
well 10,000 is not grater than 23,879?
Step-by-step explanation:
the diffrence between them is 13879 so the correct answer is A
HOPE THIS HELPS
Can someone please help to explain this to me? I have been trying to work at it and have spent time watching multiple videos trying to figure it out, but am unable to figure it out. Any help would be much appreciated! Thank you.
Answer:
first 1 I think
Step-by-step explanation:
Factor the expression using the GCF: -5x + 20
5(x + 4)
5(x-4)
-5(x + 4)
-5(x-4)
The answer fam is........-5(x-4)
Answer: Choice [D]
Step-by-step explanation:
Hii, do you need to factor the expression "-5x+20"? Let me help you out! (:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Note that -5x and 20 have a -5 in common. Let's factor it out! (:
To factor it out, we first need to divide -5x and 20 by -5.
⚜ x-4 ⚜is what we obtain
Next we put parentheses around -x+4
(x-4)is what we obtain
Now, we put 5 outside the parentheses
-5(x-4)[tex]\Large\boldsymbol{\therefore,\qquad\ Choice\:\:\:\:[D]\;is\;correct}[/tex]
--
Hope I helped! Best wishes.
⚜Reach far. Aim high. Dream big. ⚜
_________________________________[tex]\underbrace[/tex]
What is the difference of (5 + 3i) and (2 + 9i)?
Answer:
3+12i
Step-by-step explanation:
The difference of 5+3i and 2 + 1999 can be calculated as follows
= 5+3i - 2+9i
Collect the like terms
= 5-2+3i+9i
= 3+12i
Hence the difference of 5+3i and 2+9i is 3+12i
Where is the point (0, -1) ?
• x-axis • origin
• y-axis
Answer:
A. x-axis
Step-by-step explanation:
Beacuse the 0 is in the x spot, (x,y)
giving brainliest (don’t need to explain)
-
-
solve for x: 3(2x+54)-(27x-3)=56
Answer:
x = 109/21
Step-by-step explanation:
Step 1: Write equation
3(2x + 54) - (27x - 3) = 56
Step 2: Solve for x
Distribute: 6x + 162 - 27x + 3 = 56Combine like terms: -21x + 165 = 56Subtract 165 on both sides: -21x = -109Divide both sides by -21: x = 109/21Vanessa and Zack are playing a game where the player with the lower score wins. At the end of the game, Vanessa has a score of Negative 3 and StartFraction 5 over 8 EndFraction and Zack has a score of Negative 3 and two-thirds. Which statement explains who won?
Answer:
-3 2/3 < -3 5/8 so -3 2/3 is lesser
Step-by-step explanation:
the sum of two consecutive intergers is 131
Alice solved the following equation:
-18 - 3x = 12
-3x = 6
x =-2
Which of the following statements is true?
Answer:
the first line
Step-by-step explanation:
because the second line should be -3x=30
It was 12°F when Calvin went outside to check the
temperature on Saturday evening. When Calvin went
outside to check the temperature on Sunday morning, the
temperature had fallen 29°F. What was the temperature
when Calvin went outside on Sunday morning?
A student survey was conducted at a major university, and data were collected from a random sample of 750 undergraduate students. One variable that was recorded for each student was the student's answer to the question: "What region of the country did you live in just prior to enrolling in this university? Northeast/Southeast/Northwest/Southwest/Midwest/Outside the U.S." These data would be best displayed using which of the following?
a. Pie Chart
b. Histogram
c. InterQuartile Range
d. Stemplot
e. Boxplot
Answer:
Pie Chart
Step-by-step explanation:
The pie chart is a circular representation of data. It is divided into slices in order to show the distribution of data presented.
In a pie chart, the angle subtended by each slice is proportional to the magnitude of data represented.
Pie charts are most useful in the representation of categorical data such as the region of the country in which a student lived prior to enrolling in the university.
enter the slope-intercept equation for image of line
Answer:
5,6 i tink
Step-by-step explanation:
PLZZ I REALLY NEED SOME HELP
Answer:
B and E
Step-by-step explanation:
^^^^^
MR. MARTIN AGREED TO PAY OF THE
$60 DINNER BILL. HOW MUCH WILL MR.
MARTIN PAY?
Answer:
60 dollars
Step-by-step explanation:
if there is a 60 dollar bill he will pay 60 dollars
Internet Audience At the end of a certain year, the four companies with the largest number of home Internet users in the United States were Microsoft, Time Warner, Yahoo, and Google, with a combined audience of 284 million users. Taking x to be the Microsoft audience in millions, y the Time Warner audience in millions, z the Yahoo audience in millions, and u the Google audience in millions, it was observed that
z − u = 3(x − y) + 12
x + y = 50 + z + u
and x − y + z − u = 48.
How large was the audience of each of the four companies at the end of that year? Microsoft
Time Warner
Yahoo
Google
Answer:
Microsoft = 89.5 million
Time Warner = 77.5 million
Yahoo = 82.5 million
Google = 34.5 million
Step-by-step explanation:
Given
z − u = 3(x − y) + 12
x + y = 50 + z + u
x − y + z − u = 48.
From the question, we also understand that
u + x + y + z = 284
Required
Solve for u, x, y and z
Substitute 3(x - y) +12 for z - u in the third equation
x − y + z − u = 48.
(x - y) + 3(x - y) = 48
4(x - y) = 48
Divide both sides by 4.
x - y = 12
Make z + u the subject of formula in u + x + y + z = 284
z + u = 284 - (x + y)
Substitute 284 - (x + y) for z + u in the second equation
x + y = 50 + z + u
x + y = 50 + 284 - (x + y)
(x + y) + (x + y) = 50 + 284
2(x + y) = 334
Divide both sides by 2
x + y = 167
Make x the subject of formula
x = 167 - y
Substitute 167 - y for x in x - y = 12
167 - y - y = 12
167 - 2y = 12
-2y = 12 - 167
-2y = -155
2y = 155
y = 77.5
Solve for x in x = 167 - y
x = 167 - 77.5
x = 89.5
Recall that:
z − u = 3(x − y) + 12
z + u = 284 - (x + y)
Substitute the values of x and y in the above expressions.
z − u = 3(x − y) + 12
z - u = 3(89.5 - 77.5) + 12
z - u = 3(12) + 12
z - u = 36 + 12
z - u = 48
Make z the subject
z = 48 + u
Similarly,
z + u = 284 - (x + y)
z + u = 284 - (89.5 + 77.5)
z + u = 284 - 167
z + u = 117
Substitute 48 + u for z
48 + u + u = 117
48 + 2u = 117
2u = 117 - 48
2u = 69
u = 34.5
Substitute 34.5 for u in z = 48 + u
z = 48 + 34.5
z = 82.5
The size of audience of each of the four companies at the end of that year are;
Micro-soft = 89.5 million
Time Warner = 79.5 million
Yah oo = 34.5 million
Goo gle = 82.5 million
We are given the equations;
z − u = 3(x − y) + 12 ----(1)
x + y = 50 + z + u ----(2)
x − y + z − u = 48 ----(3)
Now, we are told that the combined 4 audience is 284 million users. Thus;
u + x + y + z = 284 ----(4)
Put 3(x − y) + 12 for z - u in the eq 3 to get;
(x - y) + 3(x - y) = 48
x - y + 3x - 3y
4x - 4y = 48
Divide both sides by 4 to get;
x - y = 12 ----(5)
Make z + u the subject of formula in eq 4 to get;
z + u = 284 - (x + y) ---(4b)
Put 284 - (x + y) for z + u in the eq 2;
x + y = 50 + 284 - (x + y)
x + y = 334 - x - y
Add x + y to both sides to get;
x + y + x + y = 334
2x + 2y = 334
Divide both sides by 2 to get;
x + y = 167 -----(6)
Add eq 5 to eq 6 to get;
2x = 167 + 12
2x = 179
x = 179/2
x = 89.5
Put 89.5 for x in eq 6 to get;
89.5 + y = 167
y = 167 - 89.5
y = 77.5
Put the values of x and y in eq(1) and eq(4b) to get;
z - u = 3(89.5 - 77.5) + 12
z - u = 48 ---(7)
Also,
z + u = 284 - (89.5 + 77.5)
z + u = 117 ---(8)
Add eq 7 to eq 8 to get;
2z = 165
z = 165/2
z = 82.5
Put 82.5 for z in eq 8 to get;
82.5 + u = 117
u = 117 - 82.5
u = 34.5
Read more at; https://brainly.com/question/14526969
A square pyramid and cube are shown below. Name the two dimentional figure that is a cross section of the cube but not the pyramid.
Octagon
Square
Triangle
Rectangle
Answer: Square
The cross section of a cube would be a square, because cubes are made of 2D squares. The cross section of a pyramid would be triangles because they are made of a top with triangles.
The answer is square. Hope this helps!
Answer: The answer is Square.
A cube has sides constructed as 2 Dimensional squares. A pyramid has cross sections of triangles, so they do not have the same shape as a cross section. The answer is square.
What is the great bath at mohendajaro
Answer:
The Great Bath is one of the well-known structures among the ruins of the ancient Indus Valley Civilization at Mohenjo-daro in Sindh, Pakistan. Archaeological evidence indicates that the Great Bath was built in the 3rd millennium BCE
the coordinates of point A are (2, 1) and the coordinates of point B are (-4, 9) . What are the coordinates of the midpoint of segment AB?
Answer:
(-1,5)
Step-by-step explanation:
mid point formula Is x + x divided by 2 and. y + y divided by 2
[tex]x = \frac{2 \ + ( - 4)}{2} [/tex]
[tex]y = \frac{1 + 9}{2} [/tex]
2/3 X + 5 = 17
Need it plzzz
Answer:
your answer would be idspkdijajsljfpajs[r
Step-by-step explanation:
because if u add [tex]2/3 +5 = 17[/tex] it would be idspkdijajsljfpajs[r
8/9 divided by 2/9 draw it in a model to represent it
Answer:
4
Step-by-step explanation:
kcf
8/9 x 9/2= 72/18
=4
Tou nave prizes to reveal! Go to your game board.
There are 7 empty seats and 43 occupied seats on an airplane. What is the ratio of the
number of empty seats to the number of occupied seats?
50:7
7:43
50:14
43:7
Answer:
7:43
Step-by-step explanation:
Stephanie ordered the cheese omelet, a coffee, and a side of toast. How much does she owe, not including tax
Answer:
depends on how much it cost
Step-by-step explanation:
but id asuume shed owe some money
sales tax on a $400 stereo is $16. What is the tax on a $650 TV?
PLEASE HELP i’ll give u the brainlest thingy
Answer:
5.5
Step-by-step explanation:
by going off the total cost it should be 5.5 but if it's over c it should be y/5.5 x/8