Answer:
2x + 3y = 13
4x - y = -2
In the second equation, subtract 4x from both sides.
-y = -2 - 4x
Divide both sides by -1.
y = 2 + 4x
Put this into the first equation in place of y.
2x + 3(2 + 4x) = 13
Multiply everything in the parenthesis by 3.
2x + 6 + 12x = 13
Combine like terms.
14x + 6 = 13
Subtract 6 from both sides.
14x = 7
Divide 14 on both sides.
x = 7 / 14
x = 0.5
Put this into the second equation in place of x.
4(0.5) - y = -2
2 - y = -2
Subtract 2 from both sides.
-y = -4
Divide both sides by -1.
y = 4
So x = 0.5 and y = 4.
Step-by-step explanation:
7. Find CE.
X-50
B
D
2x + 3
E
Answer:
15x is the answer ihope this helps:j
-18 < 9x
Solve for x ...
Answer:
x= -2
............................
Find the volume of the Cone. Use 3.14 for . Round your answer to the nearest hundredth ( 2 decimals). Show your work in this question, and record your answer in the next question.
Answer:
2,616.67cm³
Step-by-step explanation:
Find the diagram attached
volume of the cone = πr²h/3
r is the radius = 10cm
h is the height = 25cm
Substitute
V = 3.14(10)²*25/3
V = 314*25/3
V = 7850/3
V = 2,616.67cm³
Hence the volume of the cone to the nearest hundredth is 2,616.67cm³
Suppose your friend says he can solve 3x = 15
by using the Multiplication Property of Equality. Is he correct?
Answer:
He is incorrect
Step-by-step explanation:
Although he can solve it, he would use Division Property or Equality not multiplication
hope this helps ;)
ASAP Plssssssss heeeeelpop
Answer:
y = -2x + 1
Step-by-step explanation:
use desmos
Solve.
x + 7 = –2
A. 9
B. 5
C. –5
D. –9
Answer:
X = 9, in other words it's A
Step-by-step explanation:
Answer:
-9
Step-by-step explanation:
x+7=-2
-7 -7
-7 plus -2 equal 9
:) hope that helped
Please help I need it very soon with in the next 2 minutes
Answer: 27
Step-by-step explanation: Half of the supplementary (180 degree) angle is 90 degrees so we know that the other half is also 90 degrees. so 3x+9=90
Subtract 9 3x=81 divide by 3
x=27
Answer:
27
Step-by-step explanation:
PLEASE HELP> I NEED ANSWER ASAP. GEOMETRY
Answer:
Angle 4=82 degrees, then i think angle 1 and 3= 98 degrees
Step-by-step explanation:
Angle 2=Angle 4 and 180-82=98
Hal's business made 50,0000 last year. This year, his business made 650,000. What is the percentage difference?
The percentage difference in the amounts made is 30%.
What is the percentage difference?Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.
Percentage difference= [ (amount made this year / amount made last year) - 1 ] x 100
'(650,000 / 500,000) - 1] x 100 = 30%
To learn more about percentages, please check: https://brainly.com/question/25764815
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Honestly I'm stressed doing schoolwork. Girl bestie to play iMessage games??
Answer:
wut-
Step-by-step explanation:
Roy made 7 identical sundaes using 5 pints of ice cream. How much ice cream did Roy use for each sundae?
A Chevy Volt costs $29,600 in the United States. What would it cost in Canada?
Answer:
I may be wrong, but it should be around 37301.18 Canadian dollars
Step-by-step explanation:
The Chevy Volt costs in Canada is 37,888 Canadian Dollar
What is unitary method?Unitary method is a process by which we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit
What is the current marked value of US dollar to Canadian dollar?1 United States Dollar = 1.28 Canadian Dollar
According to the question
Chevy Volt costs in the United States = $29,600
As, per current marked value
1 United States Dollar = 1.28 Canadian Dollar
Cost in Canada = 29,600 * 1.28 Canadian Dollar
= 37,888 Canadian Dollar
Hence, the Chevy Volt costs in Canada is 37,888 Canadian Dollar
To know more about unitary method here:
https://brainly.com/question/19423643
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What is 3 (2x + 4) = 12?
Answer:
Hi!!
The answer is = 0
Step-by-step explanation:
1. Distribute
3(2+4)=12
6+12=12
2. Subtract 12 from both sides of the equation
6 + 12= 12
6 + 12 − 12 = 12 − 12
3.Simplify
part A. 6 + 12 − 12 = 12 − 12
6x = 12 - 12
part B. 6x = 12 - 12
6x = 0
Hope this helps!! =)
How can translations help you
sketch the graph of f(x) = x2 + 8x + 16?
Answer:
THE REAL ANSWER IS IN THE SCREEN SHOT HIS IS NO VIRUS LINK
Step-by-step explanation:
pls mark me brainliest
my question is what is x-4<6 i dont know inequalities
Answer:
x=6+4
x<10
(-∞,10)
Step-by-step explanation:
Inequalities are the greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
PLEASE HELP ASAP PLEASE!! WILL GIVE BRAINLEST PLEASE
Answer:
what is 5x5x8
Step-by-step explanation:
5x5=25
25x8=200
so your awnser is 200
Answer:
105
Step-by-step explanation:
To find the surface area, we need to find the area of all the sides. There are five sides, but four of them are exactly the same.
To find the area of a triangle, you need to do width x height / 2. The width is five and the height is eight. 5 x 8 / 2 = 20. There are three more sides that have the exact same area as this. Since there are four sides that have a surface area of twenty, we do 20 x 4 = 80. Then, we find the area of the bottom piece. To find the area of a square, you need to do length x width. 5 x 5 = 25. Then, we add our two areas to get the final result. 80 + 25 = 105. Therefore, 105 is the surface area of the pyramid.
Hope this helps! Thanks for brainliest! :D
A puppy weighs 4 pounds. Six months later, the puppy weighs 22 pounds. What is the average weight per month?
Answer:
3 pounds per month
Step-by-step explanation:
22-4 = 18
18/6=3
Is -1-126
(-12b - 6 + 9b - 18) equivalent to 2(b + 8)? Show your work.(please help)
Answer:
Well, -1-126 (-12b - 6 + 9b - 18) equals 378b + 2023.
Step-by-step explanation:
Subtract numbers:
−1−126 (−12−6+9−18)
−1−126 (−12−24+9)
Combine like terms:
−1−126 (−12−24+9)
−1−126 (−3−24)
Then you'll have to distribute:
−1−126 (−3−24)
−1+378 + 3024
Hope this helps :)
A circle has a diameter of 16 cm. Find its circumference. (Use the calculator's value
of 1. Round your answer to the nearest tenth.).
Answer:
the answer rounded to the nearest tenth is 37.7 cm.
Step-by-step explanation:
Which exponential equation is equivalent to this logarithmic equation?
log_(x)5+log_(x)12=7
A. 7^x=17
B. 7^x=60
C. x^7=60
D. x^7=17
Answer:
B or A
Step-by-step explanation:
Find the value of c
-x^2 -22x + c
Answer:
−(x+11− square root of 121+c )(x+11+ square root of 121+c)
Step-by-step explanation: hoped I helped
PLZ HELP I WILL GIVE BRAINLIEST
Answer:
a. the sign is interchange
it should be = x^2 - 3x + 4 - x^3 - 7x + 2
Answer:
see explanation
Step-by-step explanation:
(a)
The student has distributed the second parenthesis by 1 instead of - 1
(b)
Given
(x² - 3x + 4) - (x³ + 7x - 2)
distribute the first parenthesis by 1 and the second by - 1, that is
= x² - 3x + 4 - x³ - 7x + 2 ← collect like terms
= - x³ + x² - 10x + 6
Please help ASAP! Will mark brainliest if correct :)
Answer:
x is equal to 12 mm
A figure has vertices A = (0, 0), B = (1, 3), C = (0, 4), and D = (-1, 1). Which of the following is the MOST precise classification for figure ABCD?
Answer:
Parallelogram
Step-by-step explanation:
The sides match up
The most precise classification for figure ABCD will be a parallelogram.
What is the quadrilateral?The definition of a quadrilateral is a planar form with four sides, four vertices, and four angles. Concave and convex are the two primary kinds.
Type of quadrilateral are:
Trapezoid.Rectangle.Parallelogram.Rhombus.Square.Kite.A figure has vertices A = (0, 0), B = (1, 3), C = (0, 4), and D = (-1, 1).
The distance between AB is given as,
AB = √[(1 - 0)² + (3 - 0)²]
AB = √10 units
The distance between AD is given as,
AD = √[(-1 - 0)² + (1 - 0)²]
AD = √2 units
The measure of the adjacent sides is not equal. Then the MOST precise classification for figure ABCD will be a parallelogram.
More about the quadrilateral link is given below.
https://brainly.com/question/29934291
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Find the area of the parallelogram.
3 cm
3.2 cm
10 cm
Answer:
area
Step-by-step explanation:
area of parallelogram = base × height
= 10× 3
= 30 cm²
plz mark my answer as brainlist plzzzz vote .
hope this will be helpful to you .
The area of the parallelogram is [tex]30cm^2[/tex].
Given that,
The base of the parallelogram is 10 cm.And, the height of the parallelogram is 3 cm.Now the area of the parallelogram is
[tex]= base \times height\\\\= 3 \times 10\\\\= 3cm^2[/tex]
Therefore we can conclude that the area of the parallelogram is [tex]30cm^2[/tex]
Learn more about the parallelogram here: brainly.com/question/9680084
what is the vaule of x ?
Answer:
5
Step-by-step explanation:
(5x + 10) + 55 = 90
5x + 10 + 55 = 90
5x + 65 = 90
5x + 65 - 65 = 90 - 65 (the 65 crosses off)
5x = 25
5x/5 = 25/5
x = 5
$22.00+$14.00=
answer this
Answer:
$36
Step-by-step explanation:
22+14=36
Find the volume please, worth 20 pts I need answers asap:')
* This is the correct answer, I have taken the test and am posting the answers in hopes of helping other people :] *
Based on the diagram, what is tanA?
Enter your answer in the boxes.
tanA=
Aw that's really nice of you thanks
thank you <3 appreciate it loads
What is the Area of this figure?
Answer:
560 Square centimetres
Step-by-step explanation:
I'm not sure but I hope it is helpful and have a good luck
Answer:
416 sqr centimeters
Step-by-step explanation:
Area of Trapezoid
A = ([tex]\frac{a+b}{2}[/tex])h
a = 14cm
b = 38cm
h = 16cm
A = ([tex]\frac{14+38}{2}[/tex])(16)
A = 416 sqr centimeters