When y = 46 , x=4
23(4)=46x
(92)\46=x
X=2
The value of x will be 2 when y = 23.
What is proportionality?the property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in the destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.
Given, y is directly proportional to x , and y = 46 when x = 4,
Thus,
x : y = 4 : 46
x : y = 2: 23
So, in reference
x = 2y/23
so at y = 23 the value of x will be,
x = 2*23/23
x = 2
therefore, The value of x will be 2 when y = 23.
Learn more about proportionalities here:
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Add 2x4 - 6x3 + 5x to the difference between 9x3 + 8x2 - 2 and 4x4 - 2x2 + 8x - 5.
Simplify (x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)
The first thing I have to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a "1" in front of the parentheses, to help them keep track of the minus sign.
Here's what the subtraction looks like, when working horizontally:
(x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)
(x3 + 3x2 + 5x – 4) – 1(3x3 – 8x2 – 5x + 6)
(x3 + 3x2 + 5x – 4) – 1(3x3) – 1 (–8x2) – 1(–5x) – 1(6)
x3 + 3x2 + 5x – 4 – 3x3 + 8x2 + 5x – 6
x3 – 3x3 + 3x2 + 8x2 + 5x + 5x – 4 – 6
–2x3 + 11x2 + 10x –10
And here's what the subtraction looks like, when going vertically:
x
3
−(3x
3
+3x
2
−8x
2
+5x
−5x
−4
+6)
In the horizontal addition (above), you may have noticed that running the negative through the parentheses changed the sign on each and every term inside those parentheses. The shortcut when working vertically is to not bother writing in the subtaction sign or the parentheses; instead, write the second polynomial in the second row, and then just flip all the signs in that row, "plus" to "minus" and "minus" to "plus".
\
x
3
–3x
3
−2x
3
+3x
2
+8x
2
+11x
2
+5x
+5x
+10x
−4
–6
−10
Either way, I get the answer:
–2x3 + 11x2 + 10x – 10
LOOK AT THE PICTURE PLEASE QUICK ITS EASY
Answer:
C or d
Step-by-step explanation:
find the the x and y intercept of the line below
3x + 9y = 9
what is the answer it is way out of my level
Answer:
the answer should be B I got 11 and 1/4 and B is one digit off so I'm assuming that this is the answer
Pls help this question is way to hard
Answer:
men dog-59.09 women-40.90 total- 100%
men cat-61.29 women-38.70 total- 100%
men bird-39.13 women- 60.87 total- 100%
men total- 55.83 women- 44.16 total- 100%
Step-by-step explanation:
Five years ago Sara's aunt was four times as old as Sara. If Sara's aunt is 42 years older than Sara, how old is Sara now? Please help I have a deadline. Happy happy happy New Years everybody!
Circle the following 2 terms that correspond with the domain of a function:
y-values
independent variable
X-values
dependent variable
Answer:
x-values
independent variable
Step-by-step explanation:
x (the independent variable) is the domain
y (the dependent variable) is the range
Answer:
x-values
independent variable
Step-by-step explanation:
The way I like to think of it is like a plane. X is it going across the runway, and Y is it going into the air
write an equivalent expression
Answer:
Step-by-step explanation:
8x/5 + 4/10 - 2x/5
Answer:
[tex]\frac{6}{5}[/tex] x + [tex]\frac{2}{5}[/tex]
Step-by-step explanation:
Add the x- terms together
[tex]\frac{3}{5}[/tex] x + [tex]\frac{3}{5}[/tex] x + [tex]\frac{2}{5}[/tex]
= [tex]\frac{6}{5}[/tex] x + [tex]\frac{2}{5}[/tex]
m=-1 and (-6,12)
help pls
Answer:
y = -x +6
Step-by-step explanation:
i honestly didn't know what form you wanted so i put it in slope-intercept form for you :D
formula for slop-intercept form:
y=mx+b
12 = -1 ( -6 ) + b -----> filled in the m, x and y
12 = 6 + b -----> do PEMDAS
12 - 6 = b -----> moved 6 to the other side to isolate variable
6 = b -----> you found the y-intercept
y = -x + 6 ------> fill the equation in :D
what is the answer?
Answer:
[tex]x = 27[/tex]
Step-by-step explanation:
Angle A and angle E are the same value, therefore you could replace angle E with angle A. So that would make a triangle with angle C, angle D, and angle A. Knowing the sum of all angles in a triangle is 180, we can make an equation representing this.
[tex]3x - 10 + 2x + 10 + 45 = 180[/tex]
Now simply silve the equation to find x.
[tex]5x + 45 = 180 \\ 5x = 135 \\ x = 27[/tex]
There is your answer.
Enter an equation to represent the amount of moneys, in dollars, in Jack's account after w weeks, in simplest terms.
WILL GIVE U BRAIN IF UR SMART ENOUGH TO ANSWER AND FREE 75 PTS
Answer:
x = 96
Step-by-step explanation:
Answer:
The answer is 96.
measure of angle A = 5 X, measure of angle B = 2X, measure of angle C = 110 degrees
i need help finding x (its a triangle btw)
Answer:
A = 50
B = 20
C = 110
Step-by-step explanation:
A triangle is equal to 180°
In order to find the measure of each angle, add angle A, B, and C to get 180°
If angle A = 5x, angle B = 2x and angle C = 110 then 5x + 2x + 110 = 180°
To find each angle, first solve for x:
5x + 2x + 110 = 180° start by adding like terms
7x + 110 = 180° now subtract 110 from 180
7x = 70 finally divide 7 from 70
x = 10
To find each individual angle, substitute x with 10. For example:
A = 5x
A = 5(10)
A = 50
B = 2x
B = 20
C = 110
If you were to add A, B, and C it should equal 180°
110 + 20 + 50 = 110
Pls help my brother he needs help
Answer:
[tex]D.[/tex] [tex]5[/tex] [tex]Cans[/tex]
Step-by-step explanation:
[tex]--------------------------------------------[/tex]
[tex]7\ \frac{1}{5}-1\ \frac{4}{5}[/tex] = [tex]5.4[/tex] [tex]or[/tex] [tex]\frac{27}{5}[/tex] [tex]or[/tex] [tex]4\ \frac{2}{5}[/tex] = [tex]5[/tex] [tex]cans[/tex]
[tex]--------------------------------------------[/tex]
Hope this helps! <3
[tex]--------------------------------------------[/tex]
PLEASE help me
Which expression is equivalent to 8a + 14? (5 points)
A) 2(2a + 12)
B) 4(4a + 10)
C) 4(2a + 8)
D) 2(4a + 7)
Answer:
D) 2(4a+7)
Step-by-step explanation:
when one divides both the number by 2 you get 4a+7 so the answer is 2(4a+7)
Write a rule for the transformation of triangle RST. (x,y) --> ( , )
Answer:
A rule for the transformation of triangle RST is (7, -3)
Select all of the correct solutions for the following equation
22 – 2 = 4.1 - Y-1
(1,3)
(3,1)
(-1-3)
None of the above
Answer:
(1,3)
Step-by-step explanation:
2x-2=4x-y-1
subtract 2x on both sides
-2=2x-y-1
add y on both sides
y-2=2x-1
add 2 on both sides
y=2x+1
now we can just kinda plug and check.
if you plug in 1, you get 3, so A
The estimated total cost, y, of a child’s toy is partially based on the number of batteries used, x. The cost of one battery is $0.75. The toy itself costs $12. Which equation represents the situation?
y = 12x + 0.75
y = 0.75x + 12
y = 12x – 0.75
y = 0.75x – 12
Answer:
THE ANSWER IS A Y=12x+0.75
Step-by-step explanation:
The tennis ball has a radius of 12 cm. Calculate the volume of the tennis
ball.
Answer:
7234.56 [tex]cm^{3}[/tex]
Step-by-step explanation:
The formula for the volume of a sphere is [tex]\frac{4}{3} \pi r^{3}[/tex] where r is the radius. Since [tex]\pi[/tex] is irrational (whose digits goes on forever without repeating), we can write it using the first three numbers: 3.14. Then, substiute 12 for r and 3.14 for [tex]\pi[/tex] into the formula, and you’ll get 7234.56. Finally, add the [tex]cm^{3}[/tex] part to it to get the answer: 7234.56 [tex]cm^{3}[/tex]
Hope this helps! :)
Jon goes to a flea market and sells comic books for 3 dollars each. He starts the night with 20 dollars in
his cash register. At the end of the night, he has 47 dollars in his cash register.
How many comic books did Jon sell?
Help ASAP
8/9 divided by -5/4?
Answer:
-32/45
Step-by-step explanation:
pls help ill mark brainliest
Answer: 1 and 2/3
Step-by-step explanation:
since 1/5 goes to 1 it is multiplied by 5
so 1/3 times 5 is 1 and 2/3
The sum of a number y and -3 is-8
Answer:
-5
Step-by-step explanation:
y - 3 = -8
I know that -5 - 3 = -8
oω0
How long will it take for a car to travel a distance of 200 km if it is traveling at a velocity of 55 km/h
Answer:
About 3.63636363636 hours. I divided 200 by 55 to get that
the product of two positive numbers is 2400. one of them is six times the other. find the number.
Answer:
x multiplied by 6x is 2400. 6x^2 = 2400. x^2=400, X=20
Answer:
± 20
Step-by-step explanation:
let one number be x then the other number is 6x and the product
x × 6x = 2400 , that is
6x² = 2400 ( divide both sides by 6 )
x² = 400 ( take the square root of both sides )
x = ± 20
Thus the number is 20 or - 20
A shopper pays $87.15 for an $83 ceramic vase after sales tax is added. What is the sales tax percentage?
Answer:
5% or $4.15
Step-by-step explanation:
Answer:
5%
Step-by-step explanation:
sales tax: 87.15-83 = 4.15
4.15/83 = 0.05
to convert decimal to percentage multiply by 100
0.05*100 = 5%
Find the value of 3w-1 given that - 2w+8= 6.
Simplify your answer as much as possible.
Answer:
-4
Step-by-step explanation:
Given 2w + 8 = 6, find w
2w = -2w = -1found w = -1, sub it into 3w - 1
3w - 1 = 3(-1) -1-3 - 1= -4$85.50 divided by six
Which is true about the vertex?
1. It's halfway between the y-intercepts.
2. All of these are true.
3. It's equal to the "a" value.
4. It's equal to the "c" value.
5. It's halfway between the x-intercepts.
Answer:
5. It's halfway between the x-intercepts.
Step-by-step explanation:
The vertex is halfway between the two x-intercepts when parabola is coordinate of the vertex. The points and x and y intercept crosses the x-axis vertically so that a u shaped lines are formed. The quadratic equation is used to find the points on the parabola.
PLEASE ANSWER CORRECTLY AND GIVE A SMART NICE ANSWER PLZ.
Answer: Infinite Solutions
Step-by-step explanation:
Since 12=12 is a true statement, any value of x will work for that system of equations.
Hope this helps!
