Answer:
the anwser may eather be C or A
Step-by-step explanation:
i know this because if you read this the other two B and D dont entirly make scence and if those are not the correct answer i am sorry
i'm just explaining how i got this answer
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
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
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
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
Solve for t.
-t = 9(t-10)
pls help
Answer:
9
Step-by-step explanation:
Vanessa 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:
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]
sales tax on a $400 stereo is $16. What is the tax on a $650 TV?
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.
Convert 9% to a fraction.
Answer:
9/100
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
9%/100=9
so it should be 9.
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]
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
enter the slope-intercept equation for image of line
Answer:
5,6 i tink
Step-by-step explanation:
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:
Wally and Mike install swimming pools in the summer in a town. They are building a swimming pool that measures 14-1/2 feet wide and 23-1/2 feet long.
(a) At the outside edge of the pool is a protective fence. How many feet of fencing would be needed to surround the pool area?
(b) Kevin discovers that he can buy a packaged box of 90 feet of fencing for $950 or he can buy cut-to-order fencing that costs $12.40 per foot. Which type of fencing should he buy? How much money does he
save?
(a) They will need_____feet of fencing
(Type an integer, proper fraction, or a mixed number)
Answer:
(a) He would need 76 feet of fencing
(b) Kevin should buy the packaged box of 90 feet of fencing for $950.
(c) How much does he save?
For every 1 feet of packaged fencing Kevin buys, he saves $1.94 naira.
Step-by-step explanation:
(a) At the outside edge of the pool is a protective fence. How many feet of fencing would be needed to surround the pool area?
From the question, we are told that the swimming pool measures:
14-1/2 feet wide and 23-1/2 feet long.
Perimeter of a fence = 2(L + W)
= 2( 14-1/2 + 23-1/2)feet
= 76 feet
This means he need 76 feet of fencing.
(b) Kevin discovers that he can buy a packaged box of 90 feet of fencing for $950 or he can buy cut-to-order fencing that costs $12.40 per foot. Which type of fencing should he buy?
If : For cut to order fencing
1 foot = $12.40
76 feet =
Cross Multiply
= 76feet × $12.40/1 foot
= $942.4
This means that the cut to order fencing would cost him $942.40
The packaged box of fencing cost $950 for 90 feet of fencing. This is cheaper than the cut to order fencing and he would have extra feet of fencing(14 feet) .
Therefore, Kevin should buy the packaged box of 90 feet of fencing for $950.
How much money does he save?
For the cut to order box
1 feet = $12.40
For the packaged fence,
90 feet = $950
1 feet = x
= 950/90
= $10.555555556
≈ $10.56
Hence, 1 feet of packaged fence = $10.56
Subtracting $10.56 from $12.40
= $12.40 - $10.56
=$ 1.94
Therefore, for every 1 feet of packaged fencing Kevin buys, he saves $1.94 naira.
This means:
1 feet (packaged fence) = $10.56
76 feet = x
= 76 × $10.56
= $802.56
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
State whether the percent of change is a percent of increase or a percent of decrease. Then find the percent of change. Round to the nearest whole percent. original: 84, new: 96
Answer:
Then we divide that amount by the original older value and get 1.3035. Now we must convert that number
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
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
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
PLZZ I REALLY NEED SOME HELP
Answer:
B and E
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)
Hannah has 67.32 centimeters of wire. She uses 2 pieces of the wire.
Each piece she uses is 14.43 centimeters long. What is the length of
the remaining wire, rounded to the nearest tenth of a centimeter? (Only
round your final answer.)
Answer:
38.46 (Rounded: 38.5)
Step-by-step explanation:
67.32-2(14.43)=38.46
How many whole numbers are there up to 100, including 100?
Answer:
100
Step-by-step explanation:
because... LOGIC
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
solve for x: 3/4x5/4=4x
Answer:
x = 0
Step-by-step explanation:
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?
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)
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
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