Answer:
En el hotel hay 13 habitaciones sencillas y 37 habitaciones dobles.
Step-by-step explanation:
Un sistema de ecuaciones lineales es un conjunto de dos o más ecuaciones de primer grado, en el cual se relacionan dos o más incógnitas.
Resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.
En este caso, las variables que se definen son:
x: habitaciones simplesy: habitaciones doblesEntonces, el hotel dispone en total de 50 habitaciones, por lo que se plantea la ecuación:
x + y= 50
El hotel dispone de 87 camas. La cantidad de camas por habitación puede ser expresada mediante:
x + 2*y= 87
Entonces el sistema de ecuaciones a resolver es:
[tex]\left \{ {{x+y=50} \atop {x+2*y=87}} \right.[/tex]
El método de sustitución consiste en despejar o aislar una de las incógnitas, por ejemplo x , y sustituir su expresión en la otra ecuación. De este modo, obtienes una ecuación de primer grado con la otra incógnita, y . Una vez resuelta, calculas el valor de x sustituyendo el valor de y ya conocido.
En este caso, despejando x de la primer ecuación:
x= 50 -y
y reemplazando en la segunda ecuación obtienes:
50 -y + 2*y=87
-y + 2*y=87 -50
y= 37
Reemplazando en la expresión x= 50 -y obtienes:
x= 50 -37= 50-37
x= 13
Recordando que x representa la cantidad de habitaciones sencillas e y la cantidad de habitaciones dobles, en el hotel hay 13 habitaciones sencillas y 37 habitaciones dobles.
Can someone please help me
Answer:
So you must do tan(27)=x/2000Then once you have x you do: x^2+y^2=c^2 solve for c then add up all the sides and then subtract your total by 2000 to get the differenceMatch the base to the corresponding height.
Base (b)
Height (h)
b.
b
h
h
b
Answer:
B. is the right answer
Step-by-step explanation:
Because I just know
Shannon likes to jog around a lake
for exercise. The distance around the
lake is 440 yards. If she jogs around
the lake 4 times, how many miles has
she jogged?
[?] miles
Hint: There are 1,760 yards in 1 mile.
Shannon jogs 1 mile
440 x 4 = 1,760
I need help with this question pls help:)
Answer:
This looks difficult and i DON'T UNDERSTAND
Step-by-step explanation:
What is the are in square feet of the trapezoid
Answer:
A = 94.6ft^2
Step-by-step explanation:
In order to be able to find the area of a trapezoid or any quadrilateral shape we need to use the equation:
A= a+b/2h
As we know we have the number base 7.7ft, base 14.3ft, and height of 8.6ft so then we take these numbers :
7.7 + 14.3/2 x 8.6 = 94.6
GUYS PLZ HELP I NEED TO PASS
Answer:
The vertex is (6,-5)
the axis of symmetry is x = 6
Can someone help me with this question?
Answer:
m = 4
Step-by-step explanation:
[tex] \because ABCD\sim QRST[/tex]
[tex] \therefore \frac{10}{m}= \frac{15}{6}[/tex]
[tex] \therefore m= \frac{10\times 6}{15}[/tex]
[tex] \therefore m= \frac{60}{15}[/tex]
[tex] \therefore m=4[/tex]
Solve the differential equation [tex]\frac{1}{6x} * \frac{dy}{dx} = y\sqrt{3x^{2} - 1 }[/tex]
A. [tex]e^{2/3} \sqrt{(3x^{2} -1)^{3}}[/tex]
B. [tex]C*e^{2/3} \sqrt{(3x^{2} -1)^{3}}[/tex]
C. None of these
This ODE is separable as
1/(6x) dy/dx = y √(3x ² - 1)
→ dy / y = 6x √(3x ² - 1) dx
Integrate both sides:
∫ dy / y = ∫ 6x √(3x ² - 1) dx
The left side is trivial. For the right side, substitute u = 3x ² - 1 and du = 6x dx :
∫ dy / y = ∫ √u du
ln|y | = u ³′² + C
(that is, u is raised to the 3/2 power)
ln|y | = (3x ² - 1)³′² + C
Solve for y by taking the exponential of both sides:
exp(ln|y |) = exp((3x ² - 1)³′² + C )
y = exp((3x ² - 1)³′²) × exp(C )
y = C exp((3x ² - 1)³′²)
which can be written as
y = C exp(√((3x ² - 1)³))
which makes the answer none of these; this solution can't be expressed as either option given in A or B.
Which expression is equivalent to
Answer:
12x⁶+24x⁵-180x⁴/ 30x³+240x²+450x
Step-by-step explanation:
(x-3)(x+5)=x²+2x-15
12x⁴(x²+2x-15)= 12x⁶+24x⁵-180x⁴
(x+3)(x+5)=x²+8x+15
30x(x²+8x+15)= 30x³+240x²+450x
This table models function m.
Answer:
A: The y-intercept of function m is less than that of function n.
Step-by-step explanation:
From the table, we see that when x = 0, m(x) = -6.
This means that the y-intercept of function m is -6.
For the function "n", we are told it passes through (-1, 0) and (0, 2)
We see that at the second coordinate, at x = 0, y = 2.
This means that the y-intercept of the n function is at 2.
Therefore,we conclude that the y-intercept of function m is less than that of function n.
Write and solve a proportion to answer the question.
40 is what percent of 32?
р
100
p=0
16
Plzz help meee!
A. Break up the figure into a 2 ft by 3ſ it triangle and a 5 ft by § ft rectangle.
B.Break up the figure into a 2 ft by 5 ft triangle and a 5 ft by 3 ft rectangle.
C.Break up the figure into a 2 ft by § ft triangle and a 5 ft by § ft rectangle.
D.Break up the figure into a 2 ft by 13 ft triangle and a 5 ft by 3 ft rectangle.
Answer:
Step-by-step explanation:
x is 16% of 31.25 what is the answer
Answer: 5
Step-by-step explanation:
Answer:
5
Step-by-step explanation: 31.25 X 0.16=5
What is the area of the rectangle above?
A.
14 square units
B.
28 square units
C.
44 square units
D.
33 square units
Answer:
A = 33 units^2
Step-by-step explanation:
The area of a rectangle is given by
A = l*w where l is the length and w is the width
A = 11 * 3
A = 33 units^2
Answer:
D. 33 square units
Step-by-step explanation:
A=wl=3x11=33
A packet has 54 sheets of paper. Suraj uses 4/9of the sheets. How many sheets has he used?
Answer:
Step-by-step explanation:
54(4/9)
216/9
24 sheets
Answer:
Suraj used 24 sheets of paper
PLS HELP I WILL MARK BRAINLYEST !!!!!!
Answer:
the third option
Step-by-step explanation:
Everything is in the picture PLEASE HELP me ASAP
Answer:
77
Step-by-step explanation:
13×7=91
91-(3×4)-(1×2)
91-12-2
77
Help fast please....
Answer:
a triangular prism
Step-by-step explanation:
they are all 180)
Answer:
Possibly pyramid and if it needs to be more specific triangular based pyramid.
Though this might not be correct.
Step-by-step explanation:
Determine the median of
the following numbers:
13, 23, 10, 17, 21,8
Answer:
Step-by-step explanation:
1.) u add all the numbers
13+23+10+17+21+8=92
2.) u divied by the amount of nubers u have
92/6= 15 1/3
I really need help! will give brainliest!!
Answer: æą§đēğ
Step-by-step explanation:
30 Points! To Who Ever Can Give Me The Answer
Answer:
the answer is 2
Step-by-step explanation:
12-5(2)=12-10=2
please mark brainliest if you can, it will help me a lot
Answer:
A
Step-by-step explanation:
12-5(2)
5 times 2 = -10
12-10= 2
this is the question down below it also has options to choose
Answer:
Sorry, this answer has been removed and the account has been banned for 17 hours, 19 minutes and 52 seconds
Step-by-step explanation:
Answer:
Were is the problem?
Step-by-step explanation:
10 is equal or less than j + 5
Answer:
10 is equal or less than (sign that opens up to the right with line underneath) j+5
Answer:
10 is less than j + 5
Step-by-step explanation:
because 10 lies between two consecutive perfect squares (in increasing order)...
each Saturday morning Janie works 5 hours and earns $35.75. How much does Janie earn for each hour she works?
Answer:
$7.15
Step-by-step explanation:
You would get this by dividing $35.75 by 5.
Which cylinder will have larger volume
Answer:wheres the photo at doe
Step-by-step explanation:
Find y
A)10
B)2
C)15
D)4
Answer:
y = 4Step-by-step explanation:
3y = y + 8
3y - y = 8
2y = 8
y = 8÷2
y = 4
Answer:
4
Step-by-step explanation:
In one house, a realtor decorates 4 twin beds and 1 queen bed with a total of 18 pillows.
In another house, she decorates 4 twin beds and 4 queen beds with a total of 36 pillows.
She puts the same number of pillows on each twin bed, and the same number of pillows on each queen bed.
How many pillows does she put on each twin bed?
How many pillows does she put on each queen bed?
Answer:
The answer would be 3 pillows on each twin bed and 6 pillows on each queen bed.
Step-by-step explanation:
first house:
3 pillows x 4 twin beds = 12 pillows
18 total pillows - 12 twin bed pillows = 6 queen bed pillows
Second house
6 queen bed pillows x 4 queen beds = 24 queen bed pillow
3 twin bed pillows x 4 twin beds = 12 twin bed pillows
24 queen bed pillow + 12 twin bed pillows = 36 total pillows
Answer:
3 pillows on each twin bed and 6 pillows on each queen bed.
Step-by-step explanation:
(i had this on khan and i already knew the answer just wanted to help :>)
Plastic Rods
A factory makes rods by cutting plastic pipes that are 5 feet long into 8 rods.
Part A
How long is each rod?
40
feet
You may use the scratchpad to show your work.
Enter your answer as a fraction or a mixed number.
Part B
What is the total length of 13 rods?
Answer
65 feet long
Step-by-step explanation:
15x5 is 65
Answer:
Step-by-step explanation:
5 feet ÷ 8 = 5/8 of a foot for each rod.
(In inches that would be 5/8 × 12 inches = (5 × 12)/8 inches = 60/8 inches = 15/2 inches = 7 1/2 inches.)
13 rods would be 13 × 5/8 feet = (13 × 5)/8 feet = 65/8 feet = 8 1/8 feet
Need Help ASAP 50 POINTS
The language arts teacher wants to know whether the students in the entire school prefer a debate or an speech. The teacher draws a random sample from the following groups:
All teachers in the school
All boys in each grade
All students in the speech club
All students in each grade
Which group best represents the population she should take a random sample from to get the best results for her survey?
All teachers in the school
All boys in each grade
All students in the speech club
All students in each grade
Answer:
All students in each grade
Step-by-step explanation:
Which equation below has infinite solutions?
and please hurry it is due in an hour!!!!
Answer:
B
Step-by-step explanation:
2(x-4) = 2x - 8