Answer:
The value of y = 0.6 when x = -1.
Step-by-step explanation:
Given
y = -3x = 5To determine
Find 'y' when x = -1
Two quantities can be termed as vary with each other directly if a change in one quantity established a proportional change in the other quantity.As y directly with x, we express it as:
y ∝ x
y = kx
here 'k' is called the constant of variation
substituting y = -3 and x = 5 to determine the 'k'
y = kx
k = y/x = -3/5
As we have to find 'y' when x = -1
y = kx
so substituting x = -1 and k = -3/5
y = (-3/5) (-1)
y = 3/5
y = 0.6
Therefore, the value of y = 0.6 when x = -1.
x is a natural number with
GCF(x, 36) = 9 and LCM(x, 36)
36) =108
Find x.
================================================
Work Shown:
x = some natural number
G = GCF(x,36)
L = LCM(x,36)
We can tie together the LCM and GCF like so
L = (x*36)/G
L = (x*36)/9
L = (36/9)*x
L = 4x
Whatever the value of x is, the LCM is 4 times larger.
Since we're told the LCM is 108, we can then say,
L = 108
4x = 108
x = 108/4
x = 27
--------------
Check:
GCF(x,36) = GCF(27,36) = 9, since 36 = 9*4 and 27 = 9*3, indicating that 9 is the largest shared factor
LCM(x,36) = LCM(27,36) = 108
LCM(x,36) = (x*36)/GCF = (x*36)/9 = (27*36)/9 = 972/9 = 108
This confirms we have the right answer.
What is the slope ?
Simplify your answer and write it as a proper fraction , improper fraction of integer .
Answer:
slope = 1/2
Step-by-step explanation:
Which of the following is a solution to the equation x^2-16=0?
F. 32
G. 16
H. 8
J. 4
K. -4
Answer: solutions are J and K, +4,-4
Step-by-step explanation:
x^2-16=0
we will add 16 from both side
x^2=16
x=sqrt16
x₁=4, x₂=-4
Some one who knows about this that can help me...
Starting with the 0th term the first 4 terms, would be 0, 1, 2, 3
Replace x with each term number and solve:
The answers are: 2, 10, 50, 250
Which of the following is the equation of a line perpendicular to the line y=-3/2x+4 passing through the point (3,9)
B
с
6x + 1
E
X + 11
D
Answer:
E
X + 11 i think that is the answer of this question
A number x increased by two, answer ASAP I will give brainlest
Answer:
x + 2
hope it helps you out
f (x) = x 2 + 8x + 17
PLZ HELP ANSWER THIS QUESTION
Answer:
D
Step-by-step explanation:
the relationship between the countries of the Allied Powers?
2) The value of y is directly proportional to the value of x. Given y = 12 when x = 36.
What is the value of y when x = 60? Show your work to receive full credit.
Answer:
20
Step-by-step explanation:
y=12
x=36
Ration x/y is 36/12, equals 3
To find the value of y when x=60, divide 60 by 3, this will give you the value of y
Lori purchases a pair of shoes for $29.95. The sales tax is 2%. What is the total cost of the shoes?
Answer:
Step-by-step explanation:
Percentages you always multiple.
Take 2% times that by 100 and get 2
Ok, take 29.95 divide that by 2 and get 14.98 for the total cost of the shoes. That is your answer $14.98
Seti graphed the point Three-halves and labeled that location P. Which number line shows this point?
A number line going from 0 to 2 in increments of 1. There are 2 equals spaces between each number. Point P is half-way between 1 and 2.
A number line going from 0 to 2 in increments of 1. There are 3 equal spaces between each number. Point P is on the mark to the left of 1.
A number line going from 0 to 2 in increments of 1. There are 2 equals spaces between each number. Point P is half-way between 0 and 1.
A number line going from 0 to 2 in increments of 1. There are 3 equal spaces between each number. Point P is on the mark to the right of 1.
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
I got it right plz mark me brainliest its ok it you dont tho :D
Answer 9 and 11 please only those.
Step-by-step explanation:
11. -19/5
9.-9/10
i hope this helps
Simplify.
(-6u? - 9u-4)-(-5u²+2u+3)+(2u? + 6u+4)
Answer:
Simplified: -4u? + 5u^2 - 5u - 3
Step-by-step explanation:
In math class, there are 4 students to every 2 teachers. What is the ratio represented?
Answer:
4 to 2
Step-by-step explanation:
you said it
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Answer:
Thank you so muchhhhh
Step-by-step explanation:
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These are my last points. Please answer this correctly take your time for this.. Janel bought 5.25 pounds of gucky worms for $7.35.
a. What is the unit rate (cost per pound)?
b. What should the cost of six pounds of gucky worms cost?
c. How many pounds can she buy with $21?
d. Write an equation relating cost (x) with pounds (y). Opposite x =pounds y = cost
e. Is this relationship proportional? Explain how you know.
Answer:
a. $1.40
b. $8.40
c. 15 lbs
that's all i know but i hope this helps!
A box weighs 90 grams.
Write down, in terms of b, the weight of b boxes.
Answer:
Let B = the weight of box B
Let 2B = the weight of box A
Let 2B + 30 = the weight of box C
B + 2B + 2B + 30 = 640
5B = 610
B = 122 pounds, weight of box B
2B = 2(122) = 244 pounds, weight of box A
2B + 30 = 2(122) + 30 = 274 pounds, weight of box C
hope this helps
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Cheryl is buying lace for her dance costume. One foot of lace costs 3 dollars. How much does each amount cost? 2 2/5 feet?
Answer:
$7.20
Step-by-step explanation:
1/3 x 2.4/x = 7.20
For [tex]2\frac{2\\}{5}[/tex] feet, lace would cost 7.2 dollars as per the law of proportionality.
What is the law of proportionality?When two variables are directly or indirectly proportional to one another, their relationship may be expressed using the formulas y = kx or y = k/x, where k specifies the degree of correspondence between the two variables. The proportionality constant, k, is often used.
Given, Cheryl is buying lace for her dance costume. One foot of lace costs 3 dollars. Since,
1 feet lace = 3 dollars
[tex]2\frac{2}{5}[/tex] or 12/5 feet lace = 3 * 12/5 = 7.2
Therefore, According to the rule of proportionality, lace would cost 7.2 dollars for 12/5 feet.
Learn more about proportionality here:
https://brainly.com/question/14834359
#SPJ2
help! help!
a proportional relationship is shown in the table below: look at the picture!
what is the slope of the line that represents this relationship?
Answer:0.6
Step-by-step explanation:
We can grab 2 points in this table and plug this into the slope formula: (y2-y1)/(x1-x2). The 2 easiest points would be (0,0) and (2, 1.2). Doing this would get us (1.2-0)/(2-0). Simplifying this would get us 1.2/2, or .6.
I will award brainless to the person that actually explains how they got their answer other then “It’s right on edge”
Points D, E, and F are on circle C and EF ≅ DF.
Circle C is shown. Line segments D C and E C are radii. Point F is on the opposite side. Lines are drawn from points D and E to point F. Tangents D G and E G intersect at point G. Angle D G E is 76 degrees and angles G D C and G E C are 90 degrees. D F and E F are congruent.
What is the measure of ∠CDF?
14°
19°
26°
38°
Answer:
14°
Step-by-step explanation:
Angle DCE is congruent to Angle GDF
To find the measure of Angle CDF, you need to find the measure of Angle DCE first.
360° = 76° + 90° + Angle DCE + 90°
360° = 256° + Angle DCE
Angle DCE = 104°
Then you subtract 90° from 104° (Angle DCE) to get the measure of Angle CDF
104° - 90° = 14°
Angle CDF = 14°
Answer:
C. 26 degrees
Step-by-step explanation:
Just did the review on Edg (2021)!!
solve for x, -6x > 72
Answer:
x < -12
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesStep-by-step explanation:
Step 1: Define
-6x > 72
Step 2: Solve for x
Divide -6 on both sides: x < -12Here we see that any value x smaller than -12 would work as a solution to the inequality.
prove that A(BC)=(AB)C as the associative law of matrix multiplication
Answer:
[tex]A\left(BC\right)=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
[tex]\left(AB\right)C=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
Therefore, we conclude that
[tex]A(BC)=(AB)C[/tex]
Step-by-step explanation:
Given that the associative law of matrix multiplication
[tex]A(BC)=(AB)C[/tex]
Let
[tex]A=\begin{pmatrix}1&2\\ 3&4\end{pmatrix}[/tex]
[tex]B\:=\:\begin{pmatrix}1&0\\ 1&2\end{pmatrix}[/tex]
[tex]C=\begin{pmatrix}1&3\\ \:1&1\end{pmatrix}[/tex]
proving
A(BC)=(AB)C
Determining the L.H.S
A(BC)[tex]A\left(BC\right)=\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}\:\left[\:\begin{pmatrix}1&0\\ \:\:\:1&2\end{pmatrix}\begin{pmatrix}1&3\\ \:\:\:\:1&1\end{pmatrix}\right]\:[/tex]
First determining BC
as multiplying the rows of the first matrix by the column of the second matrix
[tex]BC=\begin{pmatrix}1&0\\ \:1&2\end{pmatrix}\begin{pmatrix}1&3\\ \:1&1\end{pmatrix}=\begin{pmatrix}1\cdot \:\:1+0\cdot \:\:1&1\cdot \:\:3+0\cdot \:\:1\\ \:1\cdot \:\:1+2\cdot \:\:1&1\cdot \:\:3+2\cdot \:\:1\end{pmatrix}[/tex]
[tex]=\begin{pmatrix}1&3\\ 3&5\end{pmatrix}[/tex]
so the matrix equation becomes
[tex]A\left(BC\right)=\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}\begin{pmatrix}1&3\\ \:3&5\end{pmatrix}[/tex]
[tex]=\begin{pmatrix}1\cdot \:1+2\cdot \:3&1\cdot \:3+2\cdot \:5\\ 3\cdot \:1+4\cdot \:3&3\cdot \:3+4\cdot \:5\end{pmatrix}[/tex]
[tex]=\begin{pmatrix}7&13\\ 15&29\end{pmatrix}[/tex]
[tex]A\left(BC\right)=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
Determining the R.H.S
(AB)C[tex]\left(AB\right)C=\left[\begin{pmatrix}1&2\\ \:\:\:\:3&4\end{pmatrix}\:\begin{pmatrix}1&0\\ \:1&2\end{pmatrix}\right]\begin{pmatrix}1&3\\ \:\:\:\:\:1&1\end{pmatrix}\:[/tex]
First determining AB
as multiplying the rows of the first matrix by the column of the second matrix
[tex]AB=\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}\begin{pmatrix}1&0\\ \:\:1&2\end{pmatrix}=\begin{pmatrix}1\cdot \:\:1+2\cdot \:\:1&1\cdot \:\:0+2\cdot \:\:2\\ \:3\cdot \:\:1+4\cdot \:\:1&3\cdot \:\:0+4\cdot \:\:2\end{pmatrix}[/tex]
[tex]=\begin{pmatrix}3&4\\ 7&8\end{pmatrix}[/tex]
so the matrix equation becomes
[tex]AB\left(C\right)=\begin{pmatrix}3&4\\ \:\:7&8\end{pmatrix}\begin{pmatrix}1&3\\ \:\:1&1\end{pmatrix}[/tex]
multiplying the rows of the first matrix by the column of the second matrix
[tex]=\begin{pmatrix}3\cdot \:1+4\cdot \:1&3\cdot \:3+4\cdot \:1\\ 7\cdot \:1+8\cdot \:1&7\cdot \:3+8\cdot \:1\end{pmatrix}[/tex]
[tex]=\begin{pmatrix}7&13\\ 15&29\end{pmatrix}[/tex]
Thus,
[tex]\left(AB\right)C=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
as
[tex]A\left(BC\right)=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
[tex]\left(AB\right)C=\begin{pmatrix}7&13\\ \:15&29\end{pmatrix}[/tex]
Therefore, we conclude that
[tex]A(BC)=(AB)C[/tex]
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Answer:
Fiona earns $2/hour more than Philip.
Step-by-step explanation:
y = 12x shows a slope of 12. That slope is the hourly salary.
Philip earns $12/hour.
Fiona:
$42/(3 hours) = $14/hour
Fiona earns $14/hour
14 - 12 = 2
Fiona earns $2/hour more than Philip.
(x-3)(x-8)=0 apply the zero product property
Answer:
x=3
x=8
Step-by-step explanation:
The "Zero Product Property" says:
If (x−3)(x−8) = 0 then (x−3) = 0 or (x−8) = 0
Now we just solve each of those:
For (x−3) = 0 we get x = 3
For (x−8) = 0 we get x = 8
And the solutions are:
x = 3, or x = 8
A, B, C, or D please and ty
Answer: A and D
Step-by-step explanation:
If you are overdrafted -275.20 and then charged an $18.00 over draft fee your account to start is -$293.20. Then you deposit 325.00 so 325.00 - 293.20 = 31.80 left in the account.
A line passes through the point (5, 1) and is perpendicular to the x-axis. What is the slope of this line?
The temperature in Bloomington on Sunday was 32.6°C. On Monday, the temperature changed by -8.25°C. What was the temperature on Monday? A. -40.85°C B. -24.35°C C. 24.35°C D. 42.25°
Answer:
C
Step-by-step explanation:
The box plots shows the length of the songs on 2 diggital music players in minutes which statement best supported by the information in the box plots
Answer:
You have to go on a cite called Math and Way buth without the and and no space between math and way
Step-by-step explanation:
Answer:
The interquartile range of the data for Music Player X is equal to the interquartile range of the data for Music Player Y.
Step-by-step explanation:
