Answer:
The answer is 2.5 hours. That's how long it would take the train to travel 270 kilometers.
mark me brainliest!
list them from least to greatest, -45, 3.5, -6, 0, 23
Answer:
-45, -6, 0, 3.5, 23
Step-by-step explanation:
Negatives then positives.
Answer:
-45, -6, 0, 3.5, 23
Step-by-step explanation:
What is the difference of (-3.4x + 4.7) - (3 + 2.9x)?
A. -0.5x + 1.7
B. -6.3x - 1.7
C. -0.5x - 1.7
D. -6.3x + 1.7
Answer:
-6.3x +1.7
Step-by-step explanation:
(-3.4x +4.7) - (3+2.9x)
= - 3.4x - 2.9x +4.7 - 3
= - 6.3x + 1.7
Answer:
d
Step-by-step explanation:
Stella sold five items at a
garage sale for $12.50, $2.75,
$0.50, $20.00, and $8.50.
How much money did she
make? Plz help
Answer:
$44.25
Step-by-step explanation:
12.5 + 2.75 + .5 + 20 + 8.5 =44.5
2.75 + .5 = 3.25
20 + 12.5 + 32.5
3.25 + 32.5 + 8.5 = 44.25
List the factors of the number.
6
and
The factors of 6, from least to greatest, are
Answer:
1,6 2,3 1,2,3,6
Step-by-step explanation:
Answer:
2and 3
Step-by-step explanation:
because 2 and 3 are the only factors that can get you an answer of 6
Please help! I’ll give brainliest to whoever answers first :)
Answer:
Step-by-step explanation:
a triangles angles add up to 180
subtract 102 from 180
180-102
that’s 78
a and b are equal so divide 78 by 2 to get 39
a and b are both 39
Answer:
A= 39 B= 39
Step-by-step explanation:
A triangle = 180 degrees
subract the 102 from 180 to get 78
the tqo angles are equal because of the dashes which means you can divide 78 by 2 to get the answer.
Write an expression equivalent to: -3(6x-10)
Answer:
Pemdas:
Step-by-step explanation:
-3*6x then -3*10
-18x+30= -0.6
What is the solution of the system
of equations?
2x + 5y = 20
y=-2/5x-1
Answer: the answer is A
Step-by-step explanation
I Took The Quiz
your friend is choosing between two music download companies. MyTunes charges $2.50 per song. Great Songs charges $1.50 per song and has a one-time membership fee of $50. When will Great Songs be the better deal?
Answer:
After 100 songs
Step-by-step explanation:
2.50x=1.50x+50
.50x=50
÷.50
X=100
Great Songs will be the better deal after 100 songs.
What are mathematical operations?Mathematical operations can also be defined by using built-in functions to subtract, divide, and multiply. The arithmetic operator is the one who conducts the arithmetic operation.
* Multiplication procedure: Values on both sides of the operator are multiplied.
For instance, 7×2 = 14
/ Division: Divides the left operand by the right operand
For instance, 4/2 = 2
MyTunes imposes a fee of $2.50 per song. Great Songs charges $1.50 for each song and includes a $50 one-time membership fee, as stated in the question.
Let the songs that come after Great Songs would be x, the better the deal.
⇒ 2.50x = 1.50x + 50
⇒ 0.50x = 50
Divided by 0.50 into both sides of the equation,
⇒ x = 100
Therefore, Great Songs will be the better deal after 100 songs.
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Simplify to an equivalent exponential expression. Use 2 as the base.
24.25
24 • 25 =
(Type your answer using exponential notation. Simplify your answer.)
HELP ASAP PLEASE
Answer:
The equivalent exponential expression using 2 as
a base will be:
[tex]2^4\cdot \:\:2^5=2^9[/tex]Step-by-step explanation:
Given the expression
[tex]2^4\cdot \:2^5[/tex]
[tex]\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}[/tex]
so the expression becomes
[tex]2^4\cdot \:2^5=2^{4+5}[/tex]
[tex]=2^9[/tex]
Therefore, the equivalent exponential expression using 2 as
a base will be:
[tex]2^4\cdot \:\:2^5=2^9[/tex]Expresiones algebraicas. 1- Escribe en el lenguaje algebraico las siguientes expresiones del lenguaje común. Dos terceras partes de un número. ____________________________ Un número menos su doble. ________________________________ La suma de los cuadrados de tres números. _____________________ El producto de dos números divididos por un tercer número.________________ La suma de tres números consecutivos. _____________________________
Answer:
Dos terceras partes de un número: [tex]\frac{2}{3}*x[/tex]
Un número menos su doble: x - 2*x
La suma de los cuadrados de tres números: x² + y² + z²
El producto de dos números divididos por un tercer número: [tex]\frac{x*y}{z}[/tex]
La suma de tres números consecutivos: x+(x+1)+(x+2)
Step-by-step explanation:
Una expresión algebraica es un conjunto de números y letras que se combinan con los signos de las operaciones aritméticas. En otras palabras, el lenguaje algebraico es el que utiliza letras, símbolos y números para expresar en forma breve y concisa enunciados en los que se pide realizar operaciones matemáticas.
Entonces, siendo x, y, z números al cual desear aplicar una operación aritmética, y teniendo en cuenta que:
dos terceras partes= [tex]\frac{2}{3}[/tex]doble: se calcula multiplicando el número por 2Cuadrado de un número n: se representa como n², y se calcula multiplicando el número por sí mismo.Producto: hace referencia a la multiplicación.Un número consecutivo se obtiene sumando una unidad al anterior.las siguientes expresiones escritas en lenguaje algebraica serán:
Dos terceras partes de un número: [tex]\frac{2}{3}*x[/tex]
Un número menos su doble: x - 2*x
La suma de los cuadrados de tres números: x² + y² + z²
El producto de dos números divididos por un tercer número: [tex]\frac{x*y}{z}[/tex]
La suma de tres números consecutivos: es la suma del primer número, más el segundo que seria el primero más uno, más el tercero que seria el primero más 2. Esto es: x+(x+1)+(x+2)
What is the radius of a
cylinder with a
diameter of 18 cm?
The radius of the cylinder with a diameter of 18 cm is 9 cm.
RadiusThe distance between the center of a circular body and the circumference of the circular body is known as Radius.
How to determine the radius of the circle?The diameter of the base of the cylinder is 18 cm.
The radius of the circular base is equal to half of the diameter of the circular base.
So,
[tex]R=\dfrac{D}{2}\\=9\text{ cm}[/tex]
Thus, the radius of the base of the cylinder with a diameter of 18 cm is 9 cm.
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Julián invito a sus amigos a comer una pizza. Él comió 2/8 del total. Juan comió el doble que Julián y mica comió la mitad de lo que comió juan. a- ¿Cuántas porciones tenía la pizza? b- ¿Cuántas comió Julián? c- ¿Cuántas comió juan? d- ¿y Mica? e- ¿Cuántas porciones sobraron? f- Demuestra con un gráfico tus respuestas.
Answer:
a) La pizza tenía 8 porciones.
b) Julián comió 2 porciones.
c) Juan comió 4 porciones.
d) Mica comió 2 porciones.
e) No sobraron porciones.
f) Véase la imagen adjunta para mayor detalle.
Step-by-step explanation:
Sean [tex]x[/tex], [tex]y[/tex], [tex]z[/tex] las razones de consumo de Julián, Mica y Juan, de acuerdo con una lectura cuidadosa del enunciado tenemos que:
[tex]x+y+z=1[/tex] (1)
(i) Julián comió 2/8 del total:
[tex]x = \frac{2}{8}[/tex] (2)
(ii) Juan comió el doble que Julián:
[tex]z = 2\cdot x[/tex] (3)
(iii) Mica comió la mitad de lo que comió Juan:
[tex]y = \frac{1}{2}\cdot z[/tex] (4)
Al aplicar (2) en (3), tenemos que Juan comió:
[tex]z = \frac{4}{8}[/tex]
Y ahora se aplica el resultado anterior a (4):
[tex]y = \frac{1}{2}\cdot \frac{4}{8}[/tex]
[tex]y = \frac{2}{8}[/tex]
a) El total de porciones queda representado en el denominador de las fracciones calculadas. Por tanto, la pizza tenía 8 porciones.
b) El número de porciones consumido por cada persona está representada por el numerador de las fracciones calculadas. Por tanto, Julián comió 2 porciones.
c) Juan comió 4 porciones.
d) Mica comió 2 porciones.
e) No sobraron porciones en tanto que la suma de porciones consumidas de las tres personas es igual al valor del denominador.
f) A continuación, anexamos el gráfico correspondiente que sustenta todos los cálculos matemáticos hechos en puntos anteriores.
Determine if it’s a function or not
Answer:
C is not a function but D is
Step-by-step explanation:
For one input, you can only have one output for this to be a function. For table C, the input of 4 has 4 different outputs, so it cannot be a function.
D is a function however, because each input has only one output, even if the output is the same number.
Complete the point-slope equation of the line through (-1,-10) and (5,2) y-2=
A small fruit basket costs $8 and a large fruit basket costs $24. The small basket
contains 6 apples and 4 pears. The large basket contains 18 apples and 12 pears.
a. Write a system of linear equations to represent this situation.
b. Can you find the unit price of each fruit?
Answer:One apple is 1.17
One pear 0.25
See below :)
Step-by-step explanation:
1.1 repeating decimal as a simplified fraction
Answer:
11/10 i think... may be wrong
Step-by-step explanation:
Answer:
10/9 is the answer.
Step-by-step explanation:
The number of apps a developer sells daily has the probability distribution represented in the table.
Number of Apps, x | 0 20 40 60 80 100
P(x) 0.05 0.25 | 0.18 0.12 0.3 0.1
If each app sells for $5.99, what is the expected daily total dollar amount taken in by the developer from the sale of apps?
A. $5.99
B. $53.40
C. $59.90
D. $314.22
E. $319.87
Answer:
Total amount taken in by the depeloper from the sale of apps = sum(5.99 * x * P(x))
= 5.99*0*0.05 + 5.99*20*0.25 + 5.99*40*0.18 + 5.99*60*0.12 + 5.99*80*0.3 + 5.99*100*0.1
= 319.87
Ans: $319.87
Step-by-step explanation:
The expected daily total dollar amount taken in by the developer from the sale of apps is $319.87 option (E) is correct.
What is uniform distribution?The continuous uniform distribution, sometimes known as the rectangle distribution, is a family of symmetric probability distributions in probability theory and statistics.
We have:
The number of apps a developer sells daily has the probability distribution represented in the table:
Number of Apps, x 0 20 40 60 80 100
P(x) 0.05 0.25 0.18 0.12 0.3 0.1
Each app sells for $5.99
We can calculate the expected daily total dollar amount taken in by the developer from the sale of apps:
The total amount is taken in by the developer from the sale of apps:
= sum(5.99x[P(x)])
= 5.99×0×0.05 + 5.99×20×0.25 + 5.99×40×0.18 + 5.99×60×0.12 +
5.99×80×0.3 + 5.99×100×0.1
= 0 + 29.95 + 43.128 + 43.128 + 143.76 + 59.9
= 319.866 ≈ $319.87
Thus, the expected daily total dollar amount taken in by the developer from the sale of apps is $319.87 option (E) is correct.
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Choose all pairs of points that are reflections of each other across both axes. A. (–412, 1) and (–1, 412) B. (2.5, –1) and (–212, 1) C. (4.2, –1) and (2.4, –1) D. (1, –2.25) and (–1, 214) E. (–2, 213) and (2, 213)
Answer:
The correct option is;
(-2, 213) and (2, -213)
Step-by-step explanation:
The reflection of a point across the x-axis is given as follows;
The coordinates of the point of the pre-image = (x, y)
The coordinates of the point of the image after reflection = (x, -y)
The reflection of a point across the y-axis is given as follows;
The coordinates of the point of the pre-image = (x, y)
The coordinates of the point of the image after reflection = (-x, y)
Therefore, from the given points, The reflection across the y-axis of the point (-2, 213) is (2, 213) and the reflection across the x-axis of the point (2, 213) is (2, -213)
Find the value of x.
19x - 36
6x + 31
Answer:
X= 5
Step-by-step explanation:
The value of x in the equation 19x - 36 and 6x + 31 are 36 / 19 and -31 / 6 respectively.
What is the equation?A formula known as an equation uses the equals sign to denote the equality of two expressions. Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given:
19x - 36 = 0
6x + 31 = 0
Solve the above equation by using the transformed as shown below,
19x - 36 = 0
19x = 36
x = 36 / 19
x = 1.895
For the second one, do the same as shown below,
6x + 31 = 0
6x = -31
x = -31 / 6
x = -5.167
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Question 8
In the figure below, the area of Square 1 is 169 cm2 and the perimeter of Square 2 is 48 cm. What is the area of Square 3?
Answer:
I’m pretty sure it’s 23
Step-by-step explanation:
Answer:
I THINK it's 15
Step-by-step explanation:
The sum of the measures of the three angles is equal to 180 degrees. What is the measure of angle B?
The angle measures of a triangle are shown
Angle A: (5x - 5) degrees
Angle B: (3x + 3) degrees
Angle C: (5x) degrees
Answer:45°
Step-by-step explanation:
First we need to find x
(5x-5)+(3x+3)+(5x)=180
Simplify
13x-2=180
Add 2 to each side
13x=182
Divide each side by 13
x=14
Now apply our x to angle B
3(14)+3
42+3
45
Angle B=45°
Write an equation of the line in slope-intercept form.
y=
[tex]\huge\boxed{y=-\frac{4}{3}}[/tex]
To find the equation for a line in slope-intercept form, we need to find the slope and the y-intercept.
The y-intercept is easy to find. It's just the value of [tex]x[/tex] when [tex]y=0[/tex]. In this case, the y-intercept is [tex]0[/tex] since the line goes through the origin.
To find the slope, we use the slope formula, where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are two known points. In this case, we'll use the only two points we have: [tex](0, 0)[/tex] and [tex](-3, 4)[/tex]
[tex]\begin{aligned}m&=\frac{y_2-y_1}{x_2-x_1}\\&=\frac{4-0}{-3-0}\\&=\frac{4}{-3}\\&=-\frac{4}{3}\end{aligned}[/tex]
Finally, we put it all together in slope-intercept form, where [tex]m[/tex] is the slope and [tex]b[/tex] is the y-intercept.
[tex]y=mx+b\\y=-\dfrac{4}{3}x+0\\\boxed{y=-\frac{4}{3}}[/tex]
square root of 90 to the nearest integer
Answer:
9
Step-by-step explanation:
since 9.48683298051 is the square root of 90 and has a 4 in the tenths number and since 4 isnt bigger than 5 i would say it rounds to 9
Answer:
9
Step-by-step explanation:
[tex]\sqrt{90} \\As\ 90\ is\ closer\ to\ 81\ more\ than\ 100,\ its\ square\ root\ is\ closer\ to\ 9\ than\ 10.\\Hence,\\9\\[/tex]
Or you can directly perform long division to obtain 9.487 as the result. 9.487 is closer to 9 than 10. Hence, 9
Riddle, do not google
What can you hold in your right hand, but never in your left hand?
Answer:
Your left hand: is your answer
Answer:
your left hand omg if i got this than pleas give me branlyist
Shauna is making accessories for the soccer team. She uses 843.81 inches of fabric on headbands for 29 players and 4 coaches. She also uses 279.56 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answer:
the 25.57 inches and 9.64 inches is the fabric used for headband and wristband for each player
Step-by-step explanation:
The computation of the fabric used on a headband and wristband for each player is as follows:
For headband
= 843.81 inches ÷ (29 players + 4 coaches)
= 843.81 inches ÷ 33
= 25.57 inches
And, for the wristband, it would be
= 279.56 inches ÷ 29 players
= 9.64 inches
Hence, the 25.57 inches and 9.64 inches is the fabric used for headband and wristband for each player
19 x 50= _____ fifties
Answer:
950
Step-by-step explanation:
19 ×5
then add the zero
Exit Ticket 12/01
1 of 1
POSSIBLE POINTS: 100
Last week, Mrs. Grant purchased a 3-pound package of strawberries for $6.84. This week she paid $10.24 for a 4-pound package of strawberries
What was the difference in the unit cost per pound that Mrs. Grant paid this week compared to last week?
Answer: $0.28
Step-by-step explanation: Pic is attached. Hope this helps. Sorry for the bad handwriting, I'm writing with a mouse.
There are 6 ouces of dough and 4 ounces of suase for each person at a party including yourself once you have a total of guest you buy exactly the needed amount of all ingredientsthe dough and sause weigh 130 ounces all together how many ounces of dough did you buy and how many ouces of suase did you buy and how may guests are coming to the party?
Answer:
Number of guests = 13
Sauce = 52 ounces
Dough = 78 ounces
Step-by-step explanation:
you are having a pizza making party. You will need 6 ounces of dough and 4 ounces of sauce for each person at the party (including myself the host) Once you have a total count of guests you have exactly the amount needed for ingredients. the dough and sauce that I have is 130 ounces all together. How many ounces of dough did I buy? Explain How many ounces of sauce did I buy? Explain How many guests are coming to the party? Explain
Dough = 6 ounces
Suase = 4 ounces
Dough + sauce = 6 + 4 = 10
Let x = total number of guests
Dough ingredients + sauce ingredients = 130
10x = 130
Divide both sides by 10
x = 130/10
= 13
x = 13
Number of guests = 13
Total ounces of dough = 6 ounces × 13 guests
= 78 ounces of dough
Total ounces of sauce = 4 ounces × 13 guests
= 52 ounces of sauce
Therefore,
Number of guests = 13
Sauce = 52 ounces
Dough = 78 ounces
A pizza restaurant charges for pizza and adds a delivery fee. The cost (c), in dollars, to have any number of pizzas (p) delivered to a home is described by the function c=8p+3. Which statement is true?
Answer:
Step-by-step explanation:'
The statement were not provided, however, we can deduce the statements from the given equation.
step one:
given
we are told that the cost is expressed as
[tex]c=8p+3[/tex]
where c=cost
p= the number of pizzas delivered
this expression for this condition is the same as the equation of line
y=mx+c
Hence we can deduce the following statements.
the term "8" represents the cost to deliver one pizza
"3" represents the fixed cost to deliver pizza, that is the delivery fee
A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many blue marbles are in the bag? Explain your reasoning.
Answer:
126
Step-by-step explanation:
21 + 4 = 25 (blue plus white marbles)
150/25 = 6 (all the marbles divided by how many we know are white and blue)
21 x 6 = 126