Answers
Answer:
x=-2
y=-5
Step-by-step explanation:
3x-y=-1
-3x+4y=-14
_________
-3y=-15
__. __
-3. -3
y=5
3x-(-5)=-1
3x+5=-1
-5. -5
_______
3x=-6
---. ---
3. 3
x=-2
Related Questions
2 Hiroaki says that a constant of proportionality must be a whole number and
cannot be a fraction or a decimal. Explain why Hiroaki is incorrect.
Answers
Given:
Hiroaki says that a constant of proportionality must be a whole number and cannot be a fraction or a decimal.
To find:
The explanation, why Hiroaki is incorrect.
Solution:
If y is directly proportional to x, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
[tex]\dfrac{y}{x}=k[/tex]
where, k is the constant of proportionality.
It means, the constant of proportionality is the ratio of two directly proportional variables.
So, constant of proportionality can be any real.
Thus, the statement that a constant of proportionality must be a whole number and cannot be a fraction or a decimal is incorrect.
Hence, Hiroaki is incorrect because constant of proportionality can be any real.
PART A: Which statement below is true?
1. A = H
2. I = C
3. B = G
4. I = A
PART B: Which statement below is true?
1. AC = IH
2. BC = HI
3. GH = BC
4. IG = CB
Answers
Answer:
Part A is I = C
&
Part B is BC = HI
Which function is most likely graphed on the coordinate plane below?
Answers
.In the coordinate x,y the point x is calledorigin
abscissa
line
y-axis
Answers
Answer:
The x coordinate is known as abscissa (B)Step-by-step Explanation:
In a Cartesian plane, we learn many such terms which represent a point, or a line, or cooridnates of some points etc[tex].[/tex]
Such terms are:
Origin (Intersection of x axis and y-axis.)x - axis (Horizontal line)y - axis (Vertical line)abscisaa (x -coordinate)ordinate (y - coordinate)The graph shows the parent function f(x)=0.75x.
Answers
answer:
it should be the graph on the top right!
The graph of the parent function f(x) = 0.75ˣ + 1 is shown in figure.
What is Function?A relation between a set of inputs having one output each is called a function.
Given that;
The parent function is,
⇒ f(x) = 0.75ˣ + 1
Now,
Since, The parent function is,
⇒ f(x) = 0.75ˣ + 1
Hence, The points on the function are (0, 2) and (1, 1.75).
Thus, The graph of the parent function is given in option 2.
Learn more about the function visit:
https://brainly.com/question/13804741
#SPJ2
Simplify the below question.
Please send the answer with correct explanation.
Answers
Answer:
48t^4
Step-by-step explanation:
First you simplify and cross out all the uneeded characters because this is a division equation
Then whatever is left you calculate it
Answer:
[tex]48t^{4}[/tex]
Step-by-step explanation:
[tex]\frac{3^{3}*8t^{3}*32}{9t^{-2}*16t}=\frac{3^{3}*8*32*t^{3}}{9*16*t^{-2+1}}\\\\=\frac{3*1*32*t^{3}}{1*2*t^{-1}}\\\\= \frac{3*16*t^{3}}{t^{-1}}\\\\= 48t^{3}*t^{1}\\\\= 48*t^{3+1}\\\\=48t^{4}[/tex]
HINT:
[tex]a^{m}*a^{n}=a^{m+n}\\\\\\\frac{1}{a^{-m}}=a^{m}[/tex]
(3a-2) (3a-2) kindly explain me the steps plus give me solution
Answers
Answer:
9a to the power 2 +4 is the answer
Step-by-step explanation:
multiple 3a x 3a u wud get 9a to the power 2
-2 x -2 u wud get = 4
then combine the two and write the answer
Answer:
9a² - 12a + 4
Step-by-step explanation:
Given
(3a - 2)(3a - 2)
Each term in the second factor is multiplied by each term in the first factor, that is
3a(3a - 2) - 2(3a - 2) ← distribute both parenthesis
= 9a² - 6a - 6a + 4 ← collect like terms
= 9a² - 12a + 4
Help me to do this problem System by sustitution.
4) y = -3x - 7
-6x - 2y = 14
Answers
Answer:
The system of equations has infinite solutions
Step-by-step explanation:
∵ y = -3x - 7 ⇒ (1)
∵ -6x - 2y = 14 ⇒ (2)
→ Substitute y in equation (2) by equation (1)
∴ -6x - 2(-3x - 7) = 14
→ Simplify the left side
∵ -6x - 2(-3x) - 2(-7) = 14
∴ -6x + 6x + 14 = 14
→ Add the like terms in the left side
∵ (-6x + 6x) + 14 = 14
∴ 0 + 14 = 14
∴ 14 = 14
∵ The variable is disappeared and the two sides of the equation equal
∴ The equation has many solutions
→ That means x and y can be any numbers
∴ The system of equations has infinite solutions
Write 73.654 correct to 1 decimal place.
Answers
Well, here
73.7
Help will give star and brainlest or what ever is the highest you can give a comment!!!
Answers
Answer:
puppies - 22
Step-by-step explanation:
since the ratio is 2:3, there are 5 parts in total. (2+3=5)
55/5=11 then multiply by parts
puppies- 2×11=22
adults- 3×11=33
check answer by adding- 22+33=55
Answer:
22 puppies and 33 adult dogs
Step-by-step explanation:
Total: 55 Dogs
Ratio: 2:3
Puppies : Adults
2 : 3 (1)
20 : 30 (10)
22 : 33 (11)
Answer = 22 puppies
PLZ HELP ME WITH THISSSS
Answers
I think I’m not sure
solve for the variable.
3(2x-4)+6=30
x=___
Answers
Answer:
x = 6
Step-by-step explanation:
Use distributive property: a(b + c) = a*b + a*c
3(2x - 4) + 6= 30
3*2x - 3*4 + 6 = 30
6x - 12 + 6 = 30
6x - 6 = 30
6x = 30+ 6
6x = 36
x = 36/6
x = 6
Answer:
x = 6
Step-by-step explanation:
Simplify 3(2x-4) first: 3 (2x) 3(-4) =
6x - 12+6 = 30
Combine like terms: -12 + 6 = -6
6x - 6 = 30
Add 6 to both sides: 6x = 36
Divide both sides by 6: x = 6
CHECK:
3( 2(6) - 4) +6 = 30
3 (12-4) +6 = 30
3(8) +6 = 30
24+ 6 = 30
30 = 30
Write this percentage as a fraction in its simplest form.
20%
Answers
Answer:
it is 1/5
Step-by-step explanation:
.............
I need help with the question pls
Answers
Answer:
15/8
Step-by-step explanation:
this is the answer because (8,15) make it to a fraction and that is how you get you answer.
Hope this helps:)
Pls mark brainlist
Variable on both sides
John will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $57.96 and costs an additional $0.12 per mile driven.
The second plan has an initial fee of $47.96 and costs an additional $0.16 per mile driven. How many miles would John need to drive for the two plans to cost
the same?
II miles
Х
?
Answers
So for starts we can go 0.16 x 63 miles = 10.04 so the total for the second plan would be $58 with driving 63 miles. and for the first plan would be 0.12 divided by 3 would be 0.04 so we add them together and we get $58 with driving a 3rd of a mile.
Overall:
1st plan: $58 with driving a 3rd of a mile.
2nd plan: $58 with driving 63 miles.
Is point (9,7) on line J explain why or why not
Answers
Answer:
you need to add the image
Step-by-step explanation:
Wyatt bought 12 souvenirs during 3 days of vacation. How many days will Wyatt have to spend on vacation before he will have bought a total of 20 souvenirs? Solve using unit rates
Answers
Answer: 5 days
Step-by-step explanation:
12/3=4 souvenirs a day
20/4=5 days
Answer:
Assuming Wyatt buys the same number of souvenirs per day (4), it will take him 5 days to buy 20.
Step-by-step explanation:
12/3 = 4 souvenirs/days
20/4 = 5 days
For which value of a are the graphs of 4 = 3x + 6y and ax – 8y = 12 parallel?
a = -4
O a =
= - 1 / 1
a = 1/2
O
a = 2
Answers
Answer: a=-4
Step-by-step explanation:
Write an equation of the parabola in vertex from y=a(x-h)^2 +k that passes through (-7,-15) and has vertex (-5,9).
Answers
Answer:
Step-by-step explanation:
We have the work form of the equation, and we also have values for x, y, h, and k. All we need to do is fill those in and solve for a:
[tex]-15=a(-7-(-5))^2+9[/tex]
Let's clean that up a bit.
[tex]-15=a(-2)^2+9[/tex] and
-15 = 4a + 9 and
-24 = 4a so
a = -6
Now we'll fill in the a value along with the h and k to get
[tex]y=-6(x+5)^2+9[/tex] which is choice C
What decimal is equivalent to 15%
Answers
Answer:
0.15 is the right answer
Answer:
0.15
Step-by-step explanation:
15% is equivalent to the decimal 0.15. Notice that dividing by 100 moves the decimal point two places to the left.
1. Simplify: 2√50 × 3√32 × 4√18
Answers
=2(5√2) × 3(4√2)× 4(3√2)
=2(5)(2)(3)(4)(4)(3√2)
=2880√2
Answer:
Answer is 4072.93506 and there's full explanation.
please help!! i’ll mark brainliest!!!!
Answers
Answer:
x^2+11x+30
Step-by-step explanation:
PLEASE HELP!! An alien blob started with a mass of 4 kg and is doubling in size every day. How large will the blob be after 2 weeks?
Answers
Answer:
56
Step-by-step explanation:
if you help me with this , you're a life saver
Answers
Step-by-step explanation:
sin0° = cos90°
sin30° = cos60°
sin45° = cos45°
sin60° = cos30°
sin90° = cos0°
How do I graph this? Domain: 1 Range: 2
Answers
Answer:
You graph them by using the domain as x and the range y.
Step-by-step explanation:
Which best describes the slope of the given line?
es )
A)
negative
B)
positive
undefined
D)
zero
Answers
Answer:
undefined
Step-by-step explanation:
The line shown is a vertical line
A vertical line has a slope of undefined
whats is x2 - x - 12 = 0
Answers
Answer:
x = -3 or x = 4
Step-by-step explanation:
[tex]x^2-x-12=0[/tex]
[tex](x+3)(x-4)=0[/tex]
[tex]x + 3 = 0[/tex]
[tex]x = -3[/tex]
[tex]x - 4 = 0[/tex]
[tex]x = 4[/tex]
Answer:
x=-3 or x=4
Step-by-step explanation:
x2−x−12=0
Step 1: Factor left side of equation.
(x+3)(x−4)=0
Step 2: Set factors equal to 0.
x+3=0 or x−4=0
x=−3 or x=4
Chuck needs to drive 400 miles on the highway.
Gas costs $1.50 per gallon. How much will it cost for
gas to drive his truck 400 miles?
Answers
Answer:
$600
Step-by-step explanation:
400*1.5=600
the sum of two numbers is 183 and the difference is 88 . find the two numbers serve by carmmers rule
Answers
Answer:
135.5 and 47.5
Step-by-step explanation:
135.5+47.5=183
135.5-47.5=88
someone help me with c pls and thx :)
Answers
Step-by-step explanation:
180 - (value of x) = answer
m° equal to c°