Answer:
(3a + b) : (4a +2b) = 5 : 8
Step-by-step explanation:
For:
[tex]a : b = 1 : 2[/tex]
Express these ratios into fractions:
[tex] \frac{a}{b} = \frac{1}{2} [/tex]
Simplify:
[tex]2a = b - - - \{eqn \: (n) \}[/tex]
For:
[tex](3a + b) : (4a +2 b)[/tex]
Express into fractions:
[tex] = \frac{(3a + b)}{(4a + 2b)} \\ [/tex]
substitute for b as 2a from equation (n):
[tex] = \frac{(3a + 2a)}{(4a + 4a)} \\ \\ = \frac{5a}{8a} \\ \\ = \frac{5}{8} [/tex]
express into ratios:
[tex] = 5 : 8[/tex]
The following points are on the graph of a function:
X Y
2 4
3 5
4 6
5 7
6 8
7 9
Which point would be on the inverse of this function?
A (7, 5)
B (-7, -5)
C (-5, -7)
D (-2, -4)
An inverse function reverses the roles of inputs and outputs (of x-values and y-values).
If (2,4) is on the graph of a function, then (4,2) is on the graph of the inverse function.
If (9,7) is on the graph of the inverse, then (7,9) would be on the graph of the original function.
If (a,b) is on the graph of the function, then (b,a) is on the graph of the inverse.
Getting to your question, which of the points listed has the inverse listed up in the table?
Enter your answer and show all the steps that you use to solve this problem in the space provided.
Find the product and explain the process and reasoning.
0.67 x 0.3 =
Answer: 0.201
Step-by-step explanation:(0.67)(0.3)
0.201 The main point to focus on when multiplying decimals is to just treat the decimals normally, as if they were whole numbers by ignoring the decimal points and multiply them together. Then put the decimal point in the answer.
can someone pls help me
9514 1404 393
Answer:
a. correct
b. 3 for $315; 5 for $485
Step-by-step explanation:
You have correctly solved for x, the number of ski trips. As a practical matter, the formula is easier to use if you don't have to deal with mixed numbers or the odd fraction:
[tex]x=\dfrac{C-60}{85}[/tex]
Use that formula to find the number of ski trips for each of the given amounts.
x = (315 -60)/85 = 255/85 = 3 trips
x = (485 -60)/85 = 425/85 = 5 trips
2. Which of the following inequalities is NOT true? F 0.309 > 0.3 G 0.329 > 0.4 H 0.104 > 0.09 J 0.9 > 0.890
Answer:
I believe that G 0.329 > 0.4 is not true.
Step-by-step explanation:
0.4 is clearly a larger number than 0.329. I feel like the key point to these are the starting numbers behind the decimal. So for 0.329 the key number would be the 3, and for 0.4 the key number would be the 4. Now which one do you think is bigger? Obviously the 0.4 for G is NOT true.
please answer the question above and pick an answer from the 3 provided
Answer:
B.
w=P-2l/2
Step-by-step explanation:
Answer:
[tex]w = \frac{p - 2l}{2} [/tex]
Step-by-step explanation:
[tex]p = 2l + 2w \\ p - 2l = 2w \\ \frac{p - 2l}{2} = \frac{2w}{2} \\ \frac{p - 2l}{2} = w[/tex]
Good luck
please help me, if you help then thanks!
Job A: $450 per weekJob B: $28,500 per year
a. Which job pays more?
b. How much more?
what is subject in the following ( I will gave you brainliest )
please buy me a school bag
Answer:
bag
Step-by-step explanation:
The subject of a sentence is the person, place, thing, or idea that is doing or being something. You can find the subject of a sentence if you can find the verb. Ask the question, "Who or what 'verbs' or 'verbed'?" and the answer to that question is the subject.
pls mark me as brainliestplease buy me a school bag
WRITE LINEAR EQUATIONS
Please help I need explanation.
Step-by-step explanation:
linear equation formula
y = mx +b
where
b = y-intercept
m = slope
so 15 should be y=
[tex]y = \frac{7}{3} x - 3[/tex]
16 should be
[tex] \frac{2}{5} x - 5[/tex]
17 should be
[tex]y = - x + 3[/tex]
18 should be
[tex]y = 2x + 1[/tex]
when is x2 greater than x3?
×2 is greater than ×3 when the numbers are in negative form.
Divide and round to the nearest tenths 5.3)9.54
Answer:
1.8
Step-by-step explanation:
9.54 ÷ 5.3
95.4 ÷ 53 = 1.8
ext Pretest: What Can We Learn from Change? 4 Select the correct answer. What is the verb phrase in this sentence? Annika and her brother will visit the farmers' market next Sunday. OA. Annika and her brother OB. next Sunday Oc. farmers' market OD will visit
Answer:
Will visit
explanation.
a verb is an action word. Visiting someone is doing an action, so will visit is the verb phrase.
The verb phrase in the given sentence is "will visit". Therefore, option D is correct.
What is a verb?A verb is a part of speech that typically describes an action or occurrence. It indicates a state of being. In a sentence, a verb is used to express the action or condition of the subject.
Verbs can take various forms, including present tense (e.g. "run"), past tense (e.g. "ran"), and future tense (e.g. "will run"). Verbs can also be regular, meaning that they follow a predictable pattern in their past tense form (e.g. "walk" becomes "walked"), or irregular, meaning that they do not follow a predictable pattern (e.g. "go" becomes "went").
Verbs can also be transitive or intransitive. The verb phrase in the given sentence is "will visit". Therefore, option D is correct.
Learn more about verbs, here:
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will give branliest pls help!
Determine the value of x
x = a√3
a = 3
x = 3√3
.........
Answer:
3
Step-by-step explanation:
7.4 need urgent help please!!!
Answer:
Here both line are perpendicular because as product of slope of both lines is -1
Answer:
lines are perpendicular
Step-by-step explanation:
If 2 lines are perpendicular then the product of their slopes = - 1
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
(1)
y = [tex]\frac{3}{4}[/tex] x - 1 ← is in slope- intercept form
with slope m = [tex]\frac{3}{4}[/tex]
(2)
3y = - 4x + 6 ( divide each term by 3 )
y = - [tex]\frac{4}{3}[/tex] x + 2 ← in slope- intercept form
with slope m = - [tex]\frac{4}{3}[/tex]
Then
[tex]\frac{3}{4}[/tex] × - [tex]\frac{4}{3}[/tex] = - 1
Thus the 2 lines are perpendicular to each other
You start at (-1, -4). You move up 8 units and right 3 units. Where do you end?
The answer should be 2, 4.
what is the value of x
[tex] \large \mathfrak{Solution : }[/tex]
By Applying Pythagoras theorem :
[tex]10 {}^{2} = {x}^{2} + {8}^{2} [/tex][tex]100 = {x}^{2} + 64[/tex][tex] {x}^{2} = 100 - 64[/tex][tex]x = \sqrt{36} [/tex][tex]x = 6[/tex]therfore, the value of x = 6 units
The quotient of three and four less than a number is less than three more than a number
Answer: gee
Step-by-step explanation:
gee
Andres tiene una tienda donde venden juguetes de colección, entre ellos las esferas del dragón, cada esfera viene en una caja de forma cúbica cuya arista mide (a + 2) cm Andres hace un pedido de cierta cantidad de estas esferas, estas son colocadas en una caja cuya base tiene un área de (25a2 + 100a +100)cm2 y una altura de (3a + 6)cm.
A. ¿Cuál es el volumen de una caja que contiene una esfera del dragón y la caja donde se ubicará el pedido? Representa algebraicamente de dos formas.
B. ¿Cuántas cajas con las esferas del dragón compró Andres, si se sabe qué la caja donde se colocará el pedido se llena totalmente? Representa esta situación mediante una fracción algebraica y reducela de ser posible Si el valor de "a" fuera 6 ¿cambiaría la cantidad de cajas con esferas del dragón pedidas por Andres? justifica tu respuesta
Un reto más: La cantidad de niveles que tendrá la caja donde se colocará el pedido se puede representar con la siguiente expresión:
[tex] \frac{3a + 6}{a + 2} [/tex]
Tenemos un problema sobre volumenes y factorización.
Partimos con la informacion:
Cada caja de esfera es una cúbica, y tiene una arista que mide (a + 2)cm
Sabemos que la caja que contiene las cajas de las esferas tiene:
una base:
B = (25*a^2 + 100*a +100)cm^2
una altura:
H = (3a + 6)cm
A) Queremos encontrar el volumen de ambas cajas.
Sabemos que para un cubo, el volumen es el cubo de la arista, entonces el volumen de la caja que contiene la esfera es:
V = cm^3 = (a^3 + 6*a^2 + 12*a + 8) cm^3
(expresado en forma factorizada y expandida)
Y para un prisma rectangular, el volumen será igual que el producto entre la base y la altura.
V' = B*H = [(25*a^2 + 100*a +100)cm^2]*[(3a + 6)cm]
Tambien podemos expandir esto a:
V' = (75*a^3 + 450*a^2 + 900*a + 600) cm^3
También expresado en dos formas.
B) Para responder esto debemos tomar el cociente V'/V
[tex]V'/V = \frac{(75*a^3 + 450*a^2 + 900*a + 600) cm^3}{(a^3 + 6*a^2 + 12*a + 8) cm^3}[/tex]
Para simplificar esto, deberíamos utilizar las formas factorizadas:
[tex]V'/V = \frac{ [(25*a^2 + 100*a +100)]*[(3a + 6)]}{ (a + 2)^3} = \frac{ 3*[(25*a^2 + 100*a +100)]*[(a + 2)]}{ (a + 2)^3} \\\\V'/V = \frac{ 3*[(25*a^2 + 100*a +100)]}{ (a + 2)^2}[/tex]
Ahora debemos factorizar la base:
25*a^2 + 100*a + 100
Para ello debemos encontrar las dos raices, que se obtienen con:
[tex]a = \frac{-100 \pm \sqrt{100^2 - 4*25*100} }{2*25} = \frac{-100 \pm 0 }{25*2} = -2[/tex]
(dos raices iguales a -2)
Entonces podemos escribir:
25*a^2 + 100*a + 100 = 25*(a + 2)^2
Remplazando esto en el cociente de volumenes, obtenemos:
[tex]V'/V = \frac{ 3*[(25*a^2 + 100*a +100)]}{ (a + 2)^2} = \frac{3*25*(a + 2)^2}{(a + 2)^2} = 3*25 = 75[/tex]
Asi, podemos ver que entran 75 cajas.
También se pregunta:
" Si el valor de "a" fuera 6 ¿cambiaría la cantidad de cajas con esferas del dragón pedidas por Andres? "
La respuesta es no, pues podemos ver que el cociente de volumenes no depende del valor de a.
Reto extra:
La cantidad de niveles está dada por:
[tex]\frac{3a + 6}{a + 2} = \frac{3(a + 2)}{a + 2} = 3[/tex]
Así podemos ver que hay 3 niveles.
Si quieres aprender mas, puedes leer:
https://brainly.com/question/15739168
Evaluate.
X =
-(-2)^(-2)2 -4(1)(-8)
2(1)
Answer:
[tex]x = \frac{129}{2} [/tex]
Step-by-step explanation:
[tex]x = ( - 2 {)}^{ - 2} \times 2 - 4 \times 1 \times ( - 8) \times 2 \times 1[/tex]
[tex]x = ( - 2 {)}^{ - 2} \times 2 + 4 \times 1 \times 8 \times2 \times 1[/tex]
[tex]x + 2( ( - 2 {)}^{ - 2} + 4 \times 8)[/tex]
[tex]x = 2( {2}^{ - 2} + 32)[/tex]
[tex]x = 2( \frac{1}{ {2}^{2} } + 32)[/tex]
[tex]x = 2( \frac{1}{4} + 32)[/tex]
[tex]x = 2 \times \frac{129}{4} [/tex]
[tex]x = \frac{129}{2} [/tex]
60 ft/s =_____mi/min
Answer:
0.682 mile / minute
Step-by-step explanation:
divide the speed value by 88
Answer:
I guess it help you if not forgive me
write what kind of quadrilateral you see in each figure and determine exactly what kind of parallelogram, trapezoid, or trapezoid it is:
please
Answer:
Step-by-step explanation:
66.
rectangle or square (if sides are equal.)
67.
trapezoid
68
trapezoid.
69.
scalene quadrilateral.
Help meeeeee T-T this is DUE today
I WILL GIVE BRAINLIEST
Answer:
To convert fahrenheit to celsius subtract 32 from the fahrenheit number and then multiply it by 5/9!!
1. a. about -17.78 degrees celsius
work: 0-32 = -32 times 5/9
-32*5 = -160
-160/9 = about -17.78
b. 0 degrees celsius
work: 32-32 = 0
0*5/9 = 0
c. about 21.11 degrees celsius
work: 70-32 = 38
38*5/9 = about 21.11
d. 37 degrees celsius
work: 98.6-32 = 66.6
66.6*5/9 = 37
e. about 37.78 degrees celsius
work: 100-32 = 68
68*5/9 = about 37.78
f. 100 degrees celsius
work: 212-32 = 180
180*5/9 = 100
celsius to fahrenheit is that number times 9/5, then + 32
2. (all of these answers are in degrees FAHRENheit. Make sure to write that!)
a. 32
work: 0*9/5 = 0 and 0+32 = 32
b. 89.6
work: 32*9/5 = 57.6.
57.6+32 = 89.6
c. 158
work: 70*9/5 = 126. 126+32 is 158
d. 209.48
work: 98.6*9/5 = 177.48. 177.48+ 32= 209.48
e. 212
work: 100*9/5 = 180. 180 + 32 = 212
f. 413.6
212*9/5 = 381.6. 381.6+32 = 413.6
Step-by-step explanation:
Hope i was in time.
pls help my test is in a couple of hours and I can’t fail
i wanna answer 1st question.I hope it will be helpful
so what you can do is to do substract of circumference of circle by the rectangle
and you will area value of circle
REPOST 25 points!!! Srry
Answer:
1) practice interviewing skills
2) build your professional network
3) get advice and information
Answer:
we choose become machine to do work faster
107,252 rounded to the nearest ten thousand
Answer:
110,000
Step-by-step explanation:
107,252 - the zero is in the then thousand place. Look one number to the right and it is 7. Since the 7 is 5 or greater, the zero is the ten thousand place is rounded to a one.
Job A: $496.15 per weekJob B: $25,750 per year
a. Which job pays more?
b. How much more?
Simplify the fraction by reducing it to its lowest terms.
14/16
Answer:
the correct answer is 7/8 i hope this helps :)
Step-by-step explanation:
how many whole numbers are between 32 and 77
Answer:
45
Step-by-step explanation:
Simply subtract 32 from 77.
To find the numbers between any two numbers, we have to find the difference between them. The difference between 77 and 32 is 45.
45 whole numbers are there between 77 and 32.
We need to find whole numbers between 77 and 32
What is whole number?The complete set of natural numbers with zero is called as whole number
To find whole numbers between 32 and 77.
we need to find the difference.
seventy seven- thirty two = fourty five
77-32=45
Therefore 45 whole numbers are between 32 and 77
To learn more about whole numbers click here: https://brainly.com/question/19161857
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Please Help! I will give you the brainiest and a lot of points (If you give me an unreasonable answer or something this is obviously not related to the question I will report you and all of your posts (whether their related to my questions or not).
-You have to use the Hindu-Arabic number system
[tex]\qquad[/tex]2010_(nine)
[tex]\qquad[/tex]7716_(nine)
[tex]\qquad[/tex]+_________
[tex]\qquad[/tex]9726_(nine)
Keep nine stable and add the bases
