An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
The value of x is 8.
The value of y is 3.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 7 is an equation.
We have,
11x - 20y = 28 ____(1)
3x + 4y = 36 _____(2)
Now,
Multiply 5 on (2).
11x - 20y = 28
15x + 20y = 180
26x = 208
This means,
x = 208/26
x = 8
Now,
11x - 20y = 28
11 x 8 - 20y = 28
88 - 20y = 28
88 - 28 = 20y
y = 60/20
y = 3
Thus,
The value of x is 8.
The value of y is 3.
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1. Holly's height changes by_________
meters for each meter that she moves away from the cliff. Enter your answer exactly as it shows in the interactive. Check
Answer: inches maybe
Step-by-step explanation:
Use the equation below to find the axis of symmetry in the given problem
Use the diagram below for 4-6
Answer: angle 2 is 90 angle 1 is 90
4&5 are acute
1&4&5 are obtuse/180
3&2 are obtuse/180
1&3 are right angles/90
Step-by-step explanation:this will take way to long to explain so just ask your teacher if you don't understand it. but these are right.
Quadrilateral ABCD is rotated 90 degrees about the origin what are the coordinates of quadrilateral A'B'C'D'
A. A' (-5,-5), B' (-5,-1) C' (-2,-1) D' ( (-1,-5)
B. A' (-5,5) B' (-1,5) C' (-1,2) D' (-5,1)
C. A' (5,5) B' (5,-1), C' (2,-1), D' (5,-1)
D. A' (5,-5), B' (1,-5) C' (1,-2), D' (5,-1)
Answer:
A. A' (-5,-5), B' (-5,-1) C' (-2,-1) D' ( (-1,-5)
Step-by-step explanation:
(It's been confirmed)
Answer:
The real answer is
D. A' (5,-5), B' (1,-5) C' (1,-2), D' (5,-1)
Not A. A' (-5,-5), B' (-5,-1) C' (-2,-1) D' ( (-1,-5)
Step-by-step explanation:
Btw there is 2 more options. number 3 is, (step3) and number 4 is, Raul did not make a mistake.
Kids filled up a swimming pool with 5000 gallons of water. The water leaked out at 2 gallons per minute. Write a linear equation to model this situation.
Answer:
Y= -2x + 5000
Step-by-step explanation:
The linear equation which model the situation is y = 5000 - 2x
Given:
Total quantity of water in the swimming pool = 5000 gallonsLeakage per minute = 2 gallonsNumber of minutes = xTotal water remaining in the pool = yThe equationTotal water remaining in the pool = Total quantity of water in the swimming pool - (Leakage per minute × Number of minutes)
y = 5000 - (2 × x)
y = 5000 - 2x
Therefore, the linear equation which model the situation is y = 5000 - 2x
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Write the equation of the line whose stope is undefined and passes through the point (7,4)
Answer:
y=-x+11
Step-by-step explanation:
The sum of two numbers is 61 and the difference is 13. What are the numbers?
Y = -5 (x + 2)^2 - 10
Convert the equation from vertex form to standard form.
Given:
The vertex form of a quadratic equation is
[tex]y=-5(x+2)^2-10[/tex]
To find:
The standard form of the given quadratic equation.
Solution:
We have,
[tex]y=-5(x+2)^2-10[/tex]
Using the formula [tex](a+b)^2=a^2+2ab+b^2[/tex], we get
[tex]y=-5(x^2+2(x)(2)+(2)^2)-10[/tex]
[tex]y=-5(x^2+4x+4)-10[/tex]
Using distributive property, we get
[tex]y=-5x^2-20x-20-10[/tex]
[tex]y=-5x^2-20x-30[/tex]
Therefore, the standard form of the given equation is [tex]y=-5x^2-20x-30[/tex].
"What is the image of (-4,2) after a reflection over the y
axis?
Answer:
(4,2)
Step-by-step explanation:
when reflecting over the y axis you just changed the sign of the x value. (:
Answer:(4,2) just take out the - symbol.
Step-by-step explanation:
PLEASE HELP ME ON MATH ASAP
In what ways are linear functions and exponential functions the same? In what ways are they different? How can they be used to model real world situations?
Answer:
In linear functions, rate of change is constant: as x goes up, y will go up a consistent amount. In exponential functions, the rate of change increases by a consistent multiplier- it will never be the same but there will be a pattern. Exponential functions are used in real world situations such as bacterial growth/decay, population growth/decline, and compound interest. Linear functions/equations can be used for comparing rates of pay. Hope this helped!
Step-by-step explanation:
PLZ HELP!!
Find the value of the missing Angles:
Answer:
Angle 1 is 58 and Angle 2 is 32 because all triangles equal to 180 and where the lines bisect creates a 90 degree angle in each triangle. Add 90 and 32 together, then minus 122 from 180 and you get angle 1 and the angle across from angle 1. For angle 2, add 58 and 90, then subtract that from 180. You'll end up getting 32
4.4 pounds of sugar for $2.35 or 10
pounds of sugar for $4.99
4.4 pounds $2.35 = $.53 per pound
10 pound $4.99 = $ .49 per pound
Which equation represents a linear function?
y= 4x (8 - x)
y= 22 + 13
y= -2
y= 7 – 3x
which 3 expressions have the same value?
Answer:
A. C. D.
Step-by-step explanation:
Original: 10-5(2)+(18-11)=7
A: 28/(4)=7
C: 49-43+(1)=7
D: 30-25+(2)=7
. If the puppies are 36% of the total dog and cat population, how many dogs and cats are in the animal shelter?
Answer:
Total number of cat and dogs = 32
Step-by-step explanation:
Missing:
Total number of puppies = 18
Puppies percent = 36%
Find:
Total number of cat and dogs
Computation:
Total number of Animals = 18 (100/36)
Total number of Animals = 50
Total number of cat and dogs = Total number of Animal - Total number of puppies
Total number of cat and dogs = 50 - 18
Total number of cat and dogs = 32
how to find area of triangle
Answer:
(Base x Height)/2
Step-by-step explanation:
Think of a triangle as a square. Use the height times the base, but divide by two because a triangle is 1/2 of a square.
Hope i helped!
hi i need help with something, tysm
Answer:
Step-by-step explanation:
y=-3/2x+5
x and y last one
i put all the points i could on this question
Step-by-step explanation:
15^2-12^2
225-144
81
√81=9
21÷9=2.3333(recurring)
2.33333×15=x
X=34.999
or X=35 to 1 d.p
Find the slope (4,-1) (-2,6)
Answer:
7/-6
Step-by-step explanation:
y2-y1/x2-x1
6--1/-2-4
6+1/-2-4
7/-6
Hope This Helps!!
What's the mean of 35, 16, 23, 42 90
Answer:
it's going to get an order of division or multiplication
a globe that is 3 ft tall casts a shadow that is 7 ft long.find the length of the shadow that a 6ft woman casts
The length of the shadow of 6 ft woman will be equal to 14 ft.
What is an arithmetic operation?The four basic mathematical operations are the addition, subtraction, multiplication, and division of two or even more integers.
Among them is the examination of integers, particularly the order of actions, which is crucial for all other mathematical topics, including algebra, data organization, and geometry.
As per the given information in the question,
Size of the globe = 3 ft.
Size of the shadow of the globe = 7 ft
Height of woman = 6 ft
Let the shadow of woman = x ft.
3 ft = 7 ft
6ft = x ft
Use cross-multiplication method,
x = (6 × 7)/3
x = 2 × 7
x = 14 ft.
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Sarah bought a new T-shirt for $40. The sale tax is 4%. How much was the tax?
Answer:
The tax is $1.60 bringing her total to $41.60
Answer: im getting free points dont get mad at me this person already answered so take full credit for him
Step-by-step explanation:
pls help look at the picture to answer th questions
Answer:
Step-by-step explanation:
B, y=5x
Answer:
A
Step-by-step explanation:
6:30
12:60 ALL reduce to 1/5
18:90
find the vertex or else ill fail my class
Answer:
Math way
Step-by-step explanation:
I'm not sure how to factor this
[tex](7+3i)+(-8+9i)[/tex]
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
Which expression will help you find the area of the triangular bases?
3•12
8•3
1/2•8•3
8•12
Answer:
The correct answer is 1/2×8×3.
Use the Distributive Property to rewrite each algebraic expression.
3(b + 8)
a.
3b + 24
b.
3b + 8
c.
b + 24
d.
b + 8
Answer: B=NEGATIVE 8
Step-by-step explanation:
3(b+8)
b= -8
Expanded Form
3b+24
-----------------------------
a.
3b + 24
Derivative
d/db (3b+24)=3
-----------------------------
Root
B = -8 (negative eight)
(hope this helped)