Answers
Step-by-step explanation:
since all angles add up to 180:
(8x-1)+(3x+4)+(3x+9)=180
add like terms:
14x+12=180
x=12
Hope that helps :)
Related Questions
En las competencias de atletismo hay 120 participantes; 30 en la prueba de 100 m, 50 en la de 200 m y 40 en la carrera de relevos; pero también hay 10 que participan en las 3 pruebas. ¿Cuál es la probabilidad de que un participante esté inscrito solamente en una prueba?
Answers
Answer:
120 by the questiom we have tl do plus or not
Look at the system of equations below. Y=2x+5 y=x+6 What is the x-coordinate of the solution to the system?
Answers
Answer:
1
Step-by-step explanation:
Given the system of equations below
y=2x+5
y=x+6
Equating the right hand side of the expressions we will have;
2x+5 = x+6
Collect the like terms;
2x - x = 6 - 5
x = 1
Hence the x-coordinate of the solution to the system is 1
anna had m pieces of candy and ate 5 she split the remaining amount with 3 of her friends
Answers
Answer:
1.67
Step-by-step explanation:
5/3 = 1.67
Can someone please check if it’s correct??
Answers
Answer:
these both are ture
Step-by-step explanation:
The value of 1/5⁻³ is equal to *
- 3
125
-15
1/5
Answers
The difference of seventeen and three
Answers
Which function is equivalent to y=3(x−2)^2+6?
y=3x^2−12x+30
y=3x^2+10
y=3x^2−4x+10
y=3x^2−12x+18
Answers
If the midpoint of the line segment is AB has coordinates (3, -1) and A (-5,0) then:
B=
Answers
you make a scale drawing of a garden plot using the scale 2in = 17ft. if the length of the row of vegetables on the scale drawing is 3in, how long is the actual row now.
Answers
Jayden and Carson are selling T-shirts and sweatshirts for a fundraiser. Jayden sells 9 T-shirts and 3 sweatshirts for $420. Carson sells 1 T-shirt and 6 sweatshirts for $296.
Write a system of equations (without solving it) representing the price of a T-shirt, t, and the price of a sweatshirt, s
Answers
Answer:
9t + 3s = 420
t + 6s = 296
s =44; t = 32
Step-by-step explanation:
Let
Price of a T-shirt = t
Price of a sweatshirt = s
Jayden:
9t + 3s = 420
Carson:
t + 6s = 296
9t + 3s = 420 (1)
t + 6s = 296 (2)
From (2)
t =296 - 6s
Substitute t =296 - 6s into (1)
9t + 3s = 420 (1)
9(296 - 6s) + 3s = 420
2664 - 54s + 3s = 420
2,664 - 51s = 420
-51s = 420 - 2,664
-51s = -2,244
s = 44
Substitute s = 44 into (2)
t + 6s = 296
t + 6(44) = 296
t + 264 = 296
t = 296 - 264
t = 32
s =44; t = 32
16x2-1
O A. (2x - 1)(8x - 1)
O B. (4x - 1)(4x + 1)
O C. (2x - 1)(8x + 1)
O D. (4x - 1)(4x - 1)
Help
Answers
Answer:
D is the answer (4x - 1)(4x + 1)
Please mark as brainliest
Have a great day, be safe and healthy
Thank u
XD
х
4.8 ft
6.5 ft
3.8 ft
The illustration models a shadow cast by a palm tree and the shadow of an individual at 5 o'clock each day. To the nearest tenth,
how tall is the palm tree?
Answers
Answer:
8.2FT
Step-by-step explanation:
Answer:
The answers 8.2!!
Step-by-step explanation:
I just guessed on the usatestprep and got it lol
Hi I really need this question answered use the screenshot
Answers
Answer:
The picture is at the bottom
Step-by-step explanation:
Here are all of the angles:
use these rules:
-the diagonals bisect the angles they cut into
- the diagonals form a 90 degree angle with each other
- the interior angles of a triangle add up to 180 degrees
- the opposite angles of a smaller where the smaller diagonals are, are equal
- the total angles of a quadrilateral is 360 degrees
PLS HELP!!!!
Why are the x-values nonnegative ?
Answers
Answer:
Because the slope is going up and not down?
Step-by-step explanation:
Answer:
because the y -values is nonnegative so the x-values are the opposite of the y-values
Classify the triangle described below.
A triangle with measures of x∘, x∘, and 2x∘ is a(n)
triangle.
A triangle with measures of x∘, x∘, and 2x∘ is a(n)
blank triangle.
Answers
9514 1404 393
Answer:
isosceles right
Step-by-step explanation:
The three angles total 180°, so you have ...
x° +x° +2x° = 180°
4x = 180
x = 45
2x = 90
The largest angle is a right angle (90°).
A triangle with measures of 45°, 45°, and 90° is an isosceles right triangle.
2. A mother is three times as old as her daughter.
In 12 years' time she will be twice as old as her daughter will be then.
How old is the mother no.w?
Answers
At the beginning the mother is 36 and the daughter is 12. Making her 3 times older. In 12 years the daughter would be 24 and the mother would be 48. Making her twice as old as her daughter
Answer:
The mother is 36 years now.Step-by-step explanation:
x - the age of the daugther now
3x - the age of the mother now
x + 12 - the age of the daugther in 12 years' time
3x + 12 - the age of the mother in 12 years' time
The mother will be twice as old as her daughter will be then:
3x + 12 = 2·(x + 12)
3x + 12 = 2x + 24 {subtract 2x from both sides}
x + 12 = 24 {subtract 12 from both sides}
x = 12 (the age of the daughter now)
3x = 3·12 = 36
Which of the following is an inequality sentence?
[tex] \text{A. \: \: x + 5 = 20}[/tex]
[tex] \text{B. \: \: x = 5}[/tex]
[tex] \text{C. \: \: x < 5}[/tex]
[tex] \text{D. \: \: x + 5}[/tex]
Answers
Answer:
[tex]C. x<5[/tex]
Step-by-step explanation:
Option A [tex][x+5=20][/tex]tells us that: When we add 5 to a variable x, we get 20. As it has a unique value for x and is completely equal to it(i.e. 15), It is an equality.Option B[tex][x=5][/tex] tells us that: A variable x equals to 5. Hence, as x is unique for 5 and is wholly equal to it, it's an equality too.Option C[tex][x<5][/tex] tells us that: A variable x isn't 5 but lesser than it. As we cannot equate it to 5, nor we are given the nature of the variable x, it is an Inequality.Option D[tex][x+5][/tex] is an expression; It can't be called an equation or an inequality unless we relate it with another expression.Step-by-step explanation:
C.x<5 is an inequality sentence.
In the diagram below, determine the value of $x$: [asy] size(6.5cm); pair cis(real magni, real argu) { return (magni*cos(argu*pi/180),magni*sin(argu*pi/180)); } draw(cis(1.5,15)--cis(-1,15)--cis(-1,15)+cis(2.5,-15)); draw(cis(-1,60)--cis(1,60)--cis(1,60)+cis(2.2,-75)); label("$30^\circ$",cis(-1,15)+(0.2,0),E); label("$45^\circ$",cis(1,60)+(-0.05,-0.2),S); label("$130^\circ$",(-0.03,0.03),SE); label("$x^\circ$",(0.8,-0.64)); [/asy]
Answers
Answer:
55 degrees
I answered the question on AoPS and it said it was correct.
Answer:
55
Step-by-step explanation:
AOPS
What should be added to 4/5 to get (-2)
Answers
Answer:
- 14/5
Step-by-step explanation:
4/5+x=-2
.......
Answer:
you just need to let x for unknown quantity then solve the equation, it is easy u need to be practical. solution is below:
Step-by-step explanation:
4/5+x=-2
4+5x/5=-2
5x=-14
x=-14/5
x=-2.8
simplify 1/2 a -4 pllleeeeeezzzzzzzzzzzzzzzz
Answers
Answer:
[tex] \frac{a}{2} - 4[/tex]
Step-by-step explanation:
1) Simplify 1/2 a to a/2.
a/2 - 4
Therefor, the answer is a/2 - 4.
Answer:
a/2-4
Step-by-step explanation:
1) Simplify 1/2 a to a/2.
a/2 - 4
And then the answer is a/2 - 4.
YOOOO SOMEONE HELP ME
Answers
Answer:
180 degrees in either direction
Step-by-step explanation:
picture it on a piece of paper, if you turn it once, the image becomes longer vertically, but if you flip it again, it looks like it does originally. If this is confusing, actually draw it and see how many times you need to rotate the page to make it look identical to the one you posted. 1 turn = 90 degrees.
Find the area of the region shown.
Answers
9*6=54
54+54=108
6*7=42
108+42=150
Josie runs a 25-mile race in 5 hours. What is her speed in miles per hour?
Answers
.……………….....
Melanie surveyed 4 people to find out the ages of their cars and the distance they drive each day.
• Lara said her car is 4 years old, and that she drives 34 miles in the morning and 38 miles in the evening each day.
• Jamal said his car is 6 years old, and that each day he drives 56 miles total to go back and forth to work and 8 miles total to drive
his children to and from school.
• Cala said her car is 2 years old, and that she drives 18 miles each day.
. Ali said his car was 2 years old when he purchased it and that he's owned it for 6 years. He also said that he drives 7 miles to
school, 2 miles to soccer practice, and 6 miles back home each day.
Enter your answers in the boxes to complete the data table.
Answers
Answer:
2/13,140
4/105,120
6/40,832
8/35,100 or 6/23,400
Step-by-step explanation:
Cala's car is 2 years old, drives 18 miles per day times 365 days in a year times 2 years old is 13,140 miles in 2 years.
Lara's car is 4 years old, drives 72 miles a day times 365 days in a year times 4 years old is 105,120 in 4 years.
Jamal's car is 6 years old, drives 64 miles per day times 365 days a year times plus 56 miles a week times 52 weeks in a year times 6 years old is 40,832 in 6 years.
Ali's car was 2 years old when he got it 6 years ago. His car is 8 years old and he drives 15 miles per day times 52 weeks in a year for 5 days each week, times 6 years is 23,400miles in 6 years. If you average what he drives per year and add that to 23,400, the car has approximately 35100 miles in 8 years.
Carl's age is three more than two times Lindsay's age. Carl is 39 years old. How old is Lindsay? Let L=Lindsay's age in years. Write the equation that represents this problem. Explain how you used math to write the equation.
Answers
Answer:
(39 x 2) + 3 = 81
Step-by-step explanation:
You can use math by multiplying 39 by 2 then adding 3 to get 81.
Julie has 25 ounces of a 30 % saline solution. This means 30 % of the solution is salt. He combines this solution with 30 ounces of 20 % saline solution. What is the total amount, in ounces, of salt in the combined mixture?
Answers
Answer:
DStep-by-step explanation:
Calculate the value of each expression. ( -8). ( -2/3)
Answers
Answer: For each they would be -8 and -2/3, but together it would be 16/3
Step-by-step explanation:
Find the slope and y-intercept. Help a girl out I’ll give you ten points.
Answers
I need help with this please
Answers
Answer:
polygons
Step-by-step explanation:
this is a hexagon so the sum of interior angles is 720. so add all of those angles and expressions and set it equal to 720. collect like terms and solve for x
once you have x, evaluate and get the exact angle measurements.
What is the quotient of 2.262 and 0.13? Select one: A. 11.5 B. 12.3 C. 15.9 D. 17.4