Answer:
72 inches
Explanation: because if you divide 72 by 12 you would have 6 and that would be 6 feet
I need help 6x-2y=10 x-2y=-5 solve by elimination
[tex] \begin{cases} 6x - 2y = 10 \\ x - 2y = - 5 \end{cases}[/tex]
Solve the system of equations by eliminating either x-term or y-term. We will eliminate the y-term as it is faster to solve the equation.To eliminate the y-term, we have to multiply the negative in either the first or second equation so we can get rid of the y-term. I will multiply negative in the second equation.
[tex] \begin{cases} 6x - 2y = 10 \\ - x + 2y = 5 \end{cases}[/tex]
There as we can get rid of the y-term by adding both equations.
[tex](6x - x) + ( - 2y + 2y) = 10 + 5 \\ 5x + 0 = 15 \\ 5x = 15 \\ x = \frac{15}{5} \longrightarrow \frac{ \cancel{15}}{ \cancel{5}} = \frac{3}{1} \\ x = 3[/tex]
Hence, the value of x is 3. But we are not finished yet because we need to find the value of y as well. Therefore, we substitute the value of x in any given equations. I will substitute the value of x in the second equation.
[tex]x - 2y = - 5 \\ 3 - 2y = - 5 \\ 3 + 5 = 2y \\ 8 = 2y \\ \frac{8}{2} = y \\ y = \frac{8}{2} \longrightarrow \frac{ \cancel{8}}{ \cancel{2}} = \frac{4}{1} \\ y = 4[/tex]
Hence, the value of y is 4. Therefore, we can say that when x = 3, y = 4.
Answer Check by substituting both x and y values in both equations.First Equation
[tex]6x - 2y = 10 \\ 6(3) - 2(4) = 10 \\ 18 - 8 = 10 \\ 10 = 10 \longrightarrow \sf{true} \: \green{ \checkmark}[/tex]
Second Equation
[tex]x - 2y = - 5 \\ 3 - 2(4) = - 5 \\ 3 - 8 = - 5 \\ - 5 = - 5 \longrightarrow \sf{true} \: \green{ \checkmark}[/tex]
Hence, both equations are true for x = 3 and y = 4. Therefore, the solution is (3,4)
Answer[tex] \begin{cases} x = 3 \\ y = 4 \end{cases} \\ \sf \underline{Coordinate \: \: Form} \\ (3,4)[/tex]
Which of these equations is correct when x = -2?
A
x + 8 = 5
B
3x - 1 = -10
C
2x - 7 = -11
D
-95x = -190
Answer:
C
Step-by-step explanation:
just plug it into a calc
Answer:
C: 2x - 7 = - 11
Step-by-step explanation:
If you insert -2 into the place of "x", you will have 2(-2) - 7.
2(-2) = -4, and -4 - 7 = -11.
can u guys help i really need to be good at math because i dont want t go to a tewter tomorrow
Answer: Your answer is (C) 6/14
Step-by-step explanation: Have a brilliant day mate - Lily ^-^
What is the value of x? (5 points)
A right angle is shown divided into two parts. The measure of one part of the right angle is 30 degrees. The measure of the other part is 4x
a
15
b
30
c
45
d
60
Answer:
A. 15
Step-by-step explanation:
I took the test, it was correct.
Use the following figure to answer the question.
1
2
If _1 and 2 are equal, then lines /and mare parallel.
True
False
Answer:
true
Step-by-step explanation:
because angle 1 and 2 can only be equal if the lines are parallel
suppose you have 8 pairs of pants, 8 shirts and 7 pairs of shoes how many different outfits can you wear assuming you take one of each?
Answer:
Step-by-step explanation:
8(8)7=448 different outfit combinations
(2x-5)-(x-3
Subtract this please
Question 1
Use the following information to answer the question.
A laundry basket has 24 t-shirts in it. Four are navy,
12 are red, and the remaining are white.
1 point
1. What is the probability of randomly selecting a red shirt
Answer:
The probability is 1/2.
Step-by-step explanation:
There are 24 T-shirts in total and 12 is half of 24, the probability is 1/2.
I'm not sure about answer...
The probability of randomly selecting a red shirt is 50%.
Step-by-step explanation:
To figure this out, separate the total number of shirts into fractions based on the color. So for example, it would look something like this: Navy shirts are 4/24, Red shirts are 12/24, and White shirts are 8/24. The probability for each of the colors would be; Navy-16.666 percent, Red-50 percent, White-33.333 percent. Since we are only looking for the probability of selecting a Red shirt, the probability would be 50%.
Using the textbook example of 420 California school districts and the regression of testscores on the student-teacher ratio, you find that the standard error on the slope coefficient is 0.51 when using the heteroskedasticity robust formula, while it is 0.48 when employing the homoskedasticity only formula. When calculating the t-statistic, the recommended procedure is to A. use the homoskedasticity only formula because the t-statistic becomes larger B. first test for homoskedasticity of the errors and then make a decision C. use the heteroskedasticity robust formula D. make a decision depending on how much different the estimate of the slope is under the two procedures
Answer:
The answer is "Option C".
Step-by-step explanation:
Robust standard errors or generic White-Huber mistakes depending on this procedure. This is also recognized as the Variance Sandwich Stimator because of the appearance of the formula. Therefore, which is under homoskedasticity, robust error terms were appropriate, in which the standard deviations of its predictor variables are non-constant and are tracked across different values or linked to pre-time periods of an exponential function.
A nature center has a fish tank in the shape of a rectangular prism the tank is 10 feet long and 8 1/4 feet wide and 6 feet tall The nature center's caretaker filled 4/5 f the tank with water. What was the volume of the water in the tank, in cubic feet? What was the height of the water in the tank? Explain or show your reasoning
Answer:
They had 20 of them
Step-by-step explanation:
sorry if its wrong
Simplify -4 + (-3) + 6.
Answer:
-1
Step-by-step explanation:
that's the answer..... use calculator or phtomath
let f(x)=4+3x and g(x)=x^2-3. find each function value: (f+g)(-4)
Answer:
43
Step-by-step explanation:
You are going to want to substitute the x of the function f(x) with the function of g(x) and replace the x in g(x) with -4
(f+g)(-4) = 4+3((-4)^2-3)
=43
hope this helped!
Answer:
43
Step-by-step explanation:
;)
ANSWER QUICK PLS ANSWER QUICK PLS
Pls answer all questions
Answer:
this is the closest i can get to the answer
1. 0.33/1 = 0.33
2. how much it costs per ounce
3. it represents the facts that it costs 0.33 per ounce
4. y=0.33x+0.33
sorry if it's wrong
Socks cost $5 per pair.
The expression 5p
represents the cost in dollars of p pairs of
socks. Why must o be a whole number?
Answer:
because there is no cents, so its a whole number, and it will help if u put the answer choices
Step-by-step explanation:
Answer:
the whole number is 5 , but I don't understand what the question is ... "if one pair of socks cost 5 dollars, how much would however pairs of socks cost" . is that what the question says ?
Step-by-step explanation:
HELP PLEASE i need it asappppp
Is 1 greater than, less than, or equal to 8/10?
Answer:
Greater than ( > )
Step-by-step explanation:
Answer:
Greater than
Step-by-step explanation
1 is greater than 0.8
of
5
What is
Domain
Answer:
Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis.
Step-by-step explanation:
(hope this helps :P)
Answer:
The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. y=−5 is a straight line perpendicular to the y-axis at point (0,−5), which means that the range is a set of one value {−5}.
Which expression is equivalent to 7z + 7z?
Answer:
[tex]14z[/tex]
Step-by-step explanation:
Since these are like-terms, they can be added together.
7z + 7z = 14z
I need help on this problem for 50 points 3000x9000
Answer:
The answer is 27,000,000
ANSWER ASAP
Which situation can be represented by this equation?
6 + 0.5x =26
A. Anne earns money for walking dogs. She charges $6 per
walk plus $0.50 per dog. What is x, the amount of money
Anne charges to take one doge on 26 walks?
B. Anne pays $6 to enter a carnival and $0.50 for every ride
she goes on at the carnival. What is x, the number of rides
Anne can go on if she has $26 to spend at the carnival?
C. Anne earns $6.50 per hour babysitting. What is x, the
number of hours Anne babysits if she earns $26?
D. Anne is downloading a game and some songs to her phone. The game cost $6, and each song cost $0.50.
What is x, the total amount Anne pays for the game and 26 songs?
A certain insect can beat its wings 180 times per
Evaluate 4x + 5y, when x = 7 and y = 10
Answer:
78
Step-by-step explanation:
4 x 7 = 28
5 x 10 = 50
50 + 28 = 78
can 2x-15 be factored
CJ's garden is surrounded by a uniform width walkway . The Garden and walkway together cover an area of 320 square feet . If the dimensions of the garden are 12 feet by 16 feet determine the width of the walkway?
HELP ME!!!!!!!!!!!!!!!!!PLEASE!!!!!!!!!!!!!
Answer:
the answer is 2ft
Step-by-step explanation:
I hope its right
Answer:
the walkway is 2 feet wide
Step-by-step explanation:
x=walkway width
(12+2x)(16+2x)=320
192+24x+32x+4x^2=320
simplify
4x^2+56x+192=320
4x^2+56x-128=0
divide by 4
x^2+14x-32=0
factor
(x+16)(x-2)=0
x=-16
x=2
i need help!!!!!!!!!!!! whats 100x200x100x300x000*1333x3000
Answer:
the awnser is zero
Step-by-step explanation: i am 100% sure
A taxi service charges a flat fee of $1.25 and $0.75 per mile. If Henri has $14.00, which of the following shows the number of miles he can afford to ride in the taxi? m less-than-or-equal-to 17 m greater-than-or-equal-to 17 m less-than-or-equal-to 20.3 m greater-than-or-equal-to 20.3
Answer: 17 miles
Step-by-step explanation:
The total cost of the taxi service is the flat free and the total amount that is based on the distance. Let x be this distance. The equation that would best represent the situation is,
1.25 + 0.75x = 14
Solving for x gives the answer of 17. Thus, Henri can afford to travel 17 mile
If Henri has $14.00, the number of miles he can afford to ride in the taxi is 17 miles.
Option (B) is correct.
What is a function?
A technical definition of a function is: a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
The equation for this situation is as follows:
The taxi service charges a flat fee of $1.25 and $0.75 per mile.
Hence,
let
x = number of miles
y = 0.75x + 1.25
where
y = $14
14 - 1.25 = 0.75x
12.75 = 0.75x
Therefore,
x = 12.75 / 0.75
x= 17
Therefore, the number of miles he can afford is 17 miles.
Learn more about function here:
https://brainly.com/question/21688251
#SPJ6
Please please please help me please
Answer:
Each term is a sum of the two previous terms like the fibonacci sequence, but the sum of the two starting terms of the lucas sequence is followed by 2 then 1, rather than 0 then 1 for the fibannaci sequence.
These are integer sequences.
The sum of the two previous terms can be represented by:
fn = fn-1 + fn-2.
These numbers can be obtained by adding the previous corresponding term of the fibonacci sequence by the next corresponding term to get the corresponding number of the lucas sequence.
Ln = { 2 if n = 0
1 if n = 1
Ln-1 + Ln-2 if n > 1
________________
Fn+1 + Fn-1 = Ln
___________________
f(0) = -1
f(1) = 2, f(2) = 1, f(3) = 3, f(4) = 4, f(5) = 7, f(6) = 11
________________________________
f(12) = 199
________
f(12) = f(11) + f(10) = (f(10) + f(9)) + (f(9) + f(8)) = .....
given f(n) = f(n-1) + f(n-2)
____________________
f(12) = f(1) + f(2) = f(2) + f(3) = f(3) + f(4) =
f(4) + f(5) = f(5) + f(6) = f(6) + f(7) =
f(7) + f(8) = f(8) + f(9) = f(9) + f(10) =
f(10) + f(11) = f(12) →
f(12) = 2 + 1 = 1 + [3] = 3 + [4] = 4 + [7] =
7 + [11] = 11 + [18] = 18 + [29] = 29 + [47] =
47 + [76] = 76 + [123] = 199
_____________________
Explicit formula
for n is an integer.
Nth term of the lucas sequence.
As you can see, the golden ratio
( 1 + √5 / 2) appears in here.
L(n) = ((1 + √5) / 2)ⁿ⁻¹ + ((1 – √5) / 2)ⁿ⁻¹
I need help ASAP!!! pls help and if it is right then I will give brainliest answer.
A librarian was packing some books.
She discarded 22 books with torn pages.
She then packed the rest equally into 9 shelves.
There were 11 books on each shelf.
Answer:
99 books in total...
Step-by-step explanation:
Total world consumption of iron was approximately 900 million tons in 1993. If consumption had increased by 2.5% each year and the resources available for mining in 1993 were 450 billion tons, how much longer would the world’s iron resources have lasted?
Step-by-step explanation:
We can model the annual consumption of iron by the equation
c = 900 million tons x [tex]1.025^n[/tex], where
n is the number of years after 1993 and
c is the consumption for that year.
An estimate for the total consumption of iron can now be obtained by integrating this equation with respect to a dummy variable, x from 0 to n.
[tex]C = 900*10^6* \int\limits^n_0 {1.025^x} \, dx[/tex]
This equation simplifies to
C = 900 million tons x (1.025^n - 1) / ln(1.025), where
x is a dummy variable and
C is the total consumption of iron n years after 1993.
Let R be the amount of iron remaining at n years after 1993, so
R = 480 billion tons - C
R = 480 billion tons - 900 million tons x (1.025^n - 1) / ln(1.025)
We need to find the value of n when R is 0, so
0 = 480 billion tons - 900 million tons x (1.025^n - 1) / ln(1.025)
Simplify this equation to obtain
n = 107.4
So the iron will run out in the year 1993 + 107 = 2100