(picture included) brainliest
Answer:
A. y = -1/4x + 1 1/2
B. The rate of change is losing/decreasing -1/4 (y axis unit) per (x axis unit)
Step-by-step explanation:
A. Your equation is 2x + 8y = 12
so solve this for y like any other other question. Start by subtracting 2x from both sides: 8y = -2x + 12
then divide both sides by 8 to isolate y: y = -2/8x + 12/8
simplify your equation: y = -1/4x + 3/2
turn 3/2 into a mixed fraction: y = -1/4x + 1 1/2
B. The rate of change is the same thing as the slope but you say it with units. I cant see a scenario but you can say something like:
The rate of change is losing/decreasing -1/4 (y axis unit) per (x axis unit)
Can you go step by step on this please, I need to write down notes for my math class.
Answer:
x = 32, y = 51
Step-by-step explanation:
You know the longest side of ΔTUS is 13m and the longest side of ΔMNP is (2x-y). Thus:
2x - y = 13 --- Equation 1
You know the sum of angles in a triangle is 360°. Two of the angles are given in ΔMNP (142° & 24°) and the remaining angle is (2x-50)°. Thus:
142 + 24 + 2x - 50 = 180
2x + 116 = 180
2x = 180 - 116
2x = 64
x = 64 ÷ 2
x = 32 --- Equation 2
Substitute x = 32 into Equation 1:
2(32) - y = 13
64 - y = 13
-y = 13 - 64
= -51
y = 51 --- Equation 3
Answer:
x = 32, y = 51
Step-by-step explanation:
Since the triangles are congruent then corresponding angles and sides are congruent, then
∠ U = ∠ N and NP = US
Require to find ∠ N
∠ N = 180° - (24 + 142)° ← sum of angles in triangle
= 180° - 166°
= 14°
Thus
2x - 50 = 14 ( add 50 to both sides )
2x = 64 ( divide both sides by 2 )
x = 32
and
NP = US
2x - y = 13 ← substitute x = 32
2(32) - y = 13
64 - y = 13 ( subtract 64 from both sides )
- y = - 51 ( multiply both sides by - 1 )
y = 51
Help!! I am going to fail my class!!! I will mark you brainiest!
Between 1970 and 2000, the population of a city decreased by approximately 2% each year. In 1970 there were 600,000 people. What was the population in 2000? Write an exponential decay function and solve showing your work.
Answer:
600,000(.90) 327,290
Step-by-step explanation:
If you help you get a brąïńlīėšt
Answer:
$200
Step-by-step explanation:
120/3=40
So they spent $40 on each ticket.
40*5=200
They would spend $200 on five tickets.
a man buys a car for 80000 Rs 20,000 more for repairing he sells it for rupees 125000 find its gain
please help I suck at math: solve the equation 3x+2=x+4(x+2)
Answer:
-3
Step-by-step explanation:
3x+2=x+4x+8
3x+2=5x+8
2=2x+8
-6=2x
-3=x
Which of the terms given can you write in the blank box so that the
equation will have infinitely many solutions?
4x – 36=(blank) (x-9)
WILL GIVE BRAINLEST IF RIGHT
Select all the expressions which are equivalent to –3(0.15 – 0.2 + 0.25p).
A. –0.45 – 0.6 + 0.25p
B. 0.15 – 0.75p
C. 3(0.15 + 0.2 + 0.25p)
D. –3(–0.05 + 0.25p)
E. –3(0.05 + 0.25p)
–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p
Equation
An equation is an expression used to show the relationship between two or more numbers and variables.
Given that:
–3(0.15 – 0.2 + 0.25p)
simplifying the expression:
= –3(-0.05 + 0.25p)
Further simplification gives:
= 0.15 – 0.75p
–3(0.15 – 0.2 + 0.25p) is equivalent to –3(-0.05 + 0.25p) and 0.15 – 0.75p
Find out more on Equation at: https://brainly.com/question/2972832
Answer: –3(–0.05 + 0.25p)
Step-by-step explanation:
To solve the system of equations below, Lisa isolated the variable y in the first
equation and then substituted it into the second equation. What was the
resulting equation?
[2y = 6x
[x² + y = 28
OA. x²-3x = 28
B. x² + 3x = 28
OC. 9x² + 3x = 28
OD. 4x² = 28
C
The resulting equation after substitution in system of equations :2y = 6x , x² + y = 28 will be option B : x^2 + 3x = 28
What is Algebraic expression ?
Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.
The given system of equation are :
2y = 6x.....(1)
[x² + y = 28.........(2)
also, Lisa isolated the variable y in the first equation and then substituted it into the second equation that is :
she substitute y = 3x in second equation :
x^2 + y =28
x^2 + 3x = 28
Therefore, the resulting equation after substitution will be option B : x^2 + 3x = 28
Read more about system of equations at :
https://brainly.com/question/12895249
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find the sum of the first 20 terms in the series. 6+3+3/2+3/4...
Answer:
6+3+3/2+3/4
=9+3/2+3/4
=
21/2+3/4
=
45/4
(Decimal: 11.25)
Step-by-step explanation:
Solve for s
2s = 6t+8w
Answer:
s = 3t + 4w
Step-by-step explanation:
2s = 6t + 8w
s = 3t + 4w
Answer:
s = 3t+4w
Step-by-step explanation:
2s = 6t+8w
s = (6t+8w) ÷ 2
(6t÷2=3t, 8w÷2=4w)
s = 3t + 4w
Need help on number 5!
-2,-5,-8,-11 41st term
Answer:
-122
Step-by-step explanation:
The common difference is
-5-(-2)
-3
So
a+(n-1)d
-2+(41-1)-3
-2+(-120)
-122
A health insurance plan has a $50 enrollment fee and a copayment of $5 for each doctor visit. The function f(x)=5x+50 gives the cost of x doctor visits. What is the cost for visiting the doctor 3 times?
Answer:
65 dollars
Step-by-step explanation:
Plug in the 3 as the x in the equation and solve.
f(x)=5(3)+50
f(x)=15+50
f(x)=65
And that's how you get the answer
Write an equation in point slope form of the line that passes through the point (2,-8) and had a slope of 4
The equation of a line in point-slope form is (y + 8) = 4(x - 2).
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, A line passes through the point (x₁, y₁) ⇒ (2,-8) and had a slope of 4.
We know the equation of a line in point-slope form is (y - y₁) = m(x - x₁).
∴ The equation of this line is (y + 8) = 4(x - 2).
learn more about lines and slopes here :
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plz help i will report if your not trying to answer
Answer:
number 5 is 1.24 x 10 (3)
number 6 is 1.53 x 10 (-4)
hoped that helped:)
Step-by-step explanation:
tim ate 100 cookies in 5 days. each day he ate 6 more cookies than he did the day before. how many cookies did he eat on the first day?
Answer:
8
Step-by-step explanation:
Day 1) 8
Day 2) 8+6 =14
Day 3) 14+6=20
Day 4) 20+ 6=26
Day 5) 26+6=32
8+14+20+26+32=100
Help pleaseeee I’ll give 5 stars and the brain thing please
Answer:60 is the answer hope that helps
Step-by-step explanation:
How do you do this one I tried all ways and it didn’t work
Answer:
Well, to start the angle supplementary to 94° is 86°.
86°+20°=106°
180°-106°=74°
x=74°
Step-by-step explanation:
Sorry if it's wrong
What is the point slope form of a line that has a slope of five and passes through the points 3,-4
Answer:
it would be, 5x-y=-19
Step-by-step explanation:
Use equation y-y1=m(x-x1)
Zane took three typing tests and recorded the results as shown.
Test
Number of
Words
Time
(minutes)
3
4
D
30
B
78
15
22
С
99
What was Zane's unit rate, in words per minute, on each test?
On which test does Zane have the highest unit rate?
Numbers aren't arranged properly so I'll try and do this. Please follow method as answer might differ cause of this
Test Number of Words Time(minutes)
A. 30. 4
B. 78. 15
C. 99. 22
Answer:
Step-by-step explanation:
To calculate Zane's unit rate/number of words per minute for which each test, we divide number of words in each test by time taken for that test
For test A, unit rate = 30 words/ 4 minutes = 7.5 words per minute
For test B, unit rate = 78 words/15 minutes = 5.2 words per minute
For test C, unit rate = 99 words/22 minutes= 4.5 words per minute
From the above Zane has the highest unit rate in test A and is therefore fastest in test A
Subtract. Write your answer in the box below.
(22 -6x +9)-2(22-3x+1)
Answer:
-15
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
(22 - 6x + 9) - 2(22 - 3x + 1)
Step 2: Simplify
Distribute -2: 22 - 6x + 9 - 44 + 6x - 2Combine like terms (x): 22 + 9 - 44 - 2Combine like terms (Z): -15Answer:
-15
Step-by-step explanation:
Please help this is due tomorrow
Answer:
A.6-5 B. 5-15 C.5-5 D.23-14 E.1-12 F. 15-2
1-4 14-1 9-8 5 - 1 3-10 10-2
G. (-)5-11 H.20-0 I. (-)3-11
1-15 20-0 0-1
Step-by-step explanation:
ex a. top left cant be lower than 1 or 5 (so I put 6)
The top right can't be lower than 1
The bottom left can't be lower than -3
The 7 dwarfs go to work whistling in a different order each day. How many days can they go without repeating an order?
Answer:
My thought is 7, but I may be very well wrong.
Step-by-step explanation:
PLEASE HELP! EASY MATH! GIVING BRAINLIEST!
Molly is painting a model house and needs to know how much paint she will need. She knows the surface area of the prism is 216 square inches and the surface area of the pyramid is 84 square inches.
1. Which surface is shared by the two solids? What are the dimensions of this surface?
2.There is another surface that Molly does not need to paint, because it wont show when she displays the model house. Describe that surface, and explain why it doesn't need to be painted.
3. To find the area Molly needs to paint, she should add the surface areas of both solids and subtract. Choose the correct answer.
A. twice the area of the triangle
B. twice the area of the square
C. three times the area of the square
D. the area of the square.
4. Find the area Molly needs to paint.
Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid
Part 2) The dimensions of this surface are 6 in x 6 in
Part 3) Molly needs to paint 228 square inches
Step-by-step explanation:
The picture of the question in the attached figure
Part 1) Which surface is shared by the two solids?
we know that
The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid
Part 2) What are the dimensions of this surface?
The surface is a square with side length 6 inches
so
The dimensions of this surface are 6 in x 6 in
Part 3) what is the area molly needs to paint?
we know that
The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids
so
therefore
Molly needs to paint 228 square inches
i hope this helps you
The value of expression when 5x²- 2 when x=3 is
Answer:
43
Step-by-step explanation:
Substitute x = 3 into the expression, that is
5(3)² - 2 = 5(9) - 2 = 45 - 2 = 43
algebra 1
what are the answers for these :
1. Y is greater than 3 times x -4
2. Y is less than 2 times x + 5
3. Y is greater than or equal to -2 times x minus 6
i need help bad please and thank you !
Answer:
1.3x-4∠Y
2.y∠2x+5
3.y≥-2x-6
.
y = 2x - 4
3y + 21x = 15
Answer:
( 1 , -2 )
Step-by-step explanation:
(x ,y)
substitute the given number of y value
slove equation for x
sub the given number of x value
slove equation for y
ordered pair
check the solution
simplify the equation
the ordered pair is the solution
A farmer has 280 acres of land on which he plans to plant two different crops, crop A and crop B. For each acre of crop A he plants, his expenses are $25, and for each acre of crop B, his expenses are $30. The farmer has a limit of $10,000 for the expenses of planting the 280 acres. If a represents the acres of crop A and b represents the acre of crop B that the farmer plants, which of these represent the limits of a and b?
Answer:
a+b<280
25a+30b less than or equal too 10000
Step-by-step explanation:
Answer:
Step - by - step explanation.
Which letter represents where the number 29 lies?
A)А
B)B
C)C С
D)D
Answer:
Step-by-step explanation:
b IS THE ANSWER.
Answer:
B
Step-by-step explanation: