Answer:
Step-by-step explanation:
Evaluate the following equation for x. 2/5x = −20
HELP PLEASE ANSWER NOW
Solve the following system of equations algebraically using the ELIMINATION METHOD. Show all work.
x-3y=1
3x-5y=11
Answer:
(7,2)
Step-by-step explanation:
Multiply the first equation by -3
(x-3y=1) = -3x+9y=-3
Combine like terms with the new equation and the second equation
(-3x+9y=-3) + (3x-5y=11) = 4y=8
Divide each side by 4
4y/4=8/4
y=2
Plug in 2 for y in any equation. It doesn’t matter which one
x-3(2)=1
Distribute
x-6=1
Add 6 to both sides
x-6=1
+6 +6
x=7
Answer: x = 7 y = 2
(7, 2)
Step-by-step explanation:
Multiply the first equation by -3 and the second by 1:
-3(x - 3y = 1)
1(3x - 5y = 11)
Becomes:
-3x + 9y = -3
3x - 5y = 11
Add the equations to eliminate x:
-3x + 9y = -3
3x - 5y = 11
4y = 8
Solve for y by dividing by 4:
4y/4 = 8/4
y = 2
Now we plug in y to the first equation:
x - 3 ( 2 ) = 1
x - 6 = 1
Add 6 to both sides:
x - 6 + 6 = 1 + 6
x = 7
find the size of angle x.
Solve the equation -4p+9=-5
Answer:
p= 7/2
-4p+9=-5
-4p=-14
p=14/4
p=7/2
Please help me this is my final!!!
Answer:
it is a. 43 sides
Step-by-step explanation:
(n-2)*180=number of degrees in a polygon
Answer:
43
Step-by-step explanation:
What is the value of X
Answer:
11=x
Step-by-step explanation:
since the lines are parallel the distances between each section of line is proportional to each other.
5/6=(x-1)/12
multiply both sides by 12
12(5/6)=(x-1)12/12
10=(x-1)
add 1 to both sides
10+1=x-1+1
11=x
I hope that helps :)
Anyone please help I have been working on this all day I am so stuck and stressed please
Answer:
61.6
Step-by-step explanation:
tan(72) = x/20
x = 61.6 rounded to the nearest tenth
In the orthonormal system (O; i⃗,j⃗) below, consider point A(3, −1), vector v⃗(2,1), and
straight line (d).
Let (d’) be the line of equation y = −2x + 5.
1. Show that A belongs to (d’).
2. Draw the straight line (d’).
3. Write a Cartesian equation of line (d).
4. What is the relative position of the lines (d)
and (d’)? Justify your answer.
5. Write the reduced equation of the straight
line(D) defined by (A, ⃗v⃗).
6. Deduce that the two lines (D) and (d) are
perpendicular.
7. Determine the coordinates of the point of
intersection I of the two lines (d) and (D).
Answer:
Step-by-step explanation:
NEED HELP PLEASE as soon as possible!!!
Which decimal is closest in value to the fraction below?
1/3
A 0.75
B.0.3333
C. 0.6
Answer:
b 0.33333333333333333
ASAP PLEASE HELP ME :(((
Answer:
59/500 * x/75000
500x = 4425000
x = 8850
Answer:
Step-by-step explanation:
I need help with this
Answer:
i need question from this
A group of students are studying two models of solids, liquids, and gases. The students have been given an ice cube that has been dyed blue, and the students are to carefully place the ice cube in a container of room temperature water.Which is the appropriate question to ask prior to the experiment?
A. Will the particles of water lose heat and begin to move faster?
B. Will the particles of ice absorb heat from the water and begin to move faster?
C. Will the particles of ice lose heat to the water and begin to move slower?
D. Will the particles of water gain heat and begin to move faster?
Answer:
B. Will the particles of ice absorb heat from the water and begin to move faster?
Step-by-step explanation:
At Subway, there are 5 choices of bread, 2 sizes, and 13 filling options. Without considering the toppings, how many ways can you order a sandwich?
Answer:
20
Step-by-step explanation:
Is this correct???????
consider two circular ferris wheels. Ferris wheel A has a radius of 7.5 feet, and wheel B has a diameter of 180 inches. Which Ferris wheel has a greater circumference
Answer:
trick question
Step-by-step explanation:
if ferris wheel A has a radius of 7.5ft=90in which you would multiplied by 2 which give a diameter of 180in and ferris wheel B has a diameter of 180in they would have the same circumference.
I need help with #2 help if u can
Answer:
Step-by-step explanation:
G
6. Alyssa is making a recipe that requires 2 cup of oil and 4 cups of milk. Which of the following combinations shows the same ratio of oil to milk?
Answer:
D. 6 cups of oil to 12 cups of milk.
find the area plz and thank u
Answer:
A = 173.82
Step-by-step explanation:
[tex]A = 2 (1 + \sqrt{2}) a^{2}[/tex]
a = 6
substitute 6 for a
A = 2 (1 + [tex]\sqrt{2}[/tex]) [tex]6^{2}[/tex]
solve:
A = 2 (1 + [tex]\sqrt{2}[/tex]) 36
A = 173.82
Answer:
Around 173.8 km (rounded to the nearest tenth of a km
Step-by-step explanation:
The area of an octagon can be found using the expression:
A=2(1+sqrt of 2)a^2
plug your side of 6 in to create the following equation:
A=2(1+sqrt of 2)(6^2)
Solve for A:
A= (2 + 2*sqrt of 2)(36) I multiplied 6 by 6 to get 36 and used distributive property on the other section.
A=72+72sqrt of 2
plug that in a calculator and you get around 173.8 km
What is 6/5 be cause I am having a hard time
Answer:
Step-by-step explanation:
6/5 = 1⅕ or 1.2
Answer:
decimal form 1.2
mixed form: 1 1/5
Step-by-step explanation:
I'm not sure which answer you were looking for
What is the slope of the line that passes through the points (-2,2) and (7,3)
Answer:
Step-by-step explanation:
Given points
let ( x1, y1 ) = ( - 2 , 2) and (x2 , y2 ) = (7, 3)
slope of the line (m)
= ( y2 - y1) / (x2 - x1)
= ( 3 -2 ) / ( 7 + 2)
= 1 / 9
hope it helps :)
A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
-9x-8y= 41
-9x-2y=71
Answer:
I think it is add to eliminate x
Answer:
Step-by-step explanation:
Write an equation of the line that passes through the given points.
(-6,8) and (1,0)
Answer:
y=-8/7x+8/7
Step-by-step explanation:
Which are true statements when comparing the data in the box plots? Select three choices.
The data for elementary school are more consistent than those for middle school.
More of the data for middle school lie closer to the median than the data for elementary school.
About 50% of elementary school students watch between 4 and 7 hours of television each week.
About one-half of middle school students watch less than 2 hours of television each week.
On average, middle school students watch less television than elementary school students each week.
Answer:
A,C,E
Step-by-step explanation:
Answer:
A- The data for elementary school are more consistent than those for middle school.
C- About 50% of elementary school students watch between 4 and 7 hours of television each week.
E- On average, middle school students watch less television than elementary school students each week.
Step-by-step explanation:
Edge 2021 December 8th
Someone help me PLZZ
Answer:
5/3
Step-by-step explanation:
The slope is the coefficient next to the x. Therefore, the slope is 5/3.
Answer:
m= 5/3
Step-by-step explanation:
Math wizzz
Worked it out
And online calculator verified!
Which of the following is equal to 10.6 ÷ 2?
A.
(10 ÷ 2) + (0.6 ÷ 2)
B.
(10 ÷ 2) + (2 ÷ 0.6)
C.
(10 ÷ 2) - (6 ÷ 2)
D.
(10 ÷ 2) - (0.6 ÷ 2)
Answer:
[tex]\huge\boxed{\sf Option\ A }[/tex]
Step-by-step explanation:
10.6 ÷ 2 = 5.3
Now,
Part A)
(10 ÷ 2) + (0.6 ÷ 2)
= 5 + 0.3
= 5.3
No need to solve other parts. The correct option is A.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807hi hi hi hi it’s b right?
Answer:B
Step-by-step explanation: yes b as the x is always 50x greater than the Y
Answer: yes it’s B. My dear!
Step-by-step explanation: hope this helps :)
Solve the following:
-x + 4(1 + 5x) = 156
I need help please ?
HeIpheIp heIp hep heIp heIp heIpheIp heIp
Answer:
Area of sector ≈ 15.6π (nearest tenth)
Step-by-step explanation:
Given:
radius = 5 cm
Central angle in radians = ∅ = 5π/4
Required:
Area of the sector
Solution:
Area of sector = ½*r²*∅
Plug in the values into the formula
Area of sector = ½*5²*5π/4
= ½*25*5π/4
= 12.5*5π/4
= (12.5*5π)/4
Area of sector = 15.625π ≈ 15.6π (nearest tenth)
Match each vertex in IJL to its corresponding vertex in the dashed triangle.
Answer:
Step-by-step explanation:
It’s LJK
Which expression is equivalent to (18x + 9k) + (2x + 6k)?
16 x + 3 k
20 x + 15 k
20 x + 16 k
36 x + 54 k
20x + 15k is the answer we just have to remove the bracket and add the terms
hope it helps
Answer:
20x + 15K
Step-by-step explanation:
just add like variables (x and Y)