x - y = 4 and x + y = 9
Answers
Answer:
5-1=4 and 5+4=9
Step-by-step explanation:
[tex]\huge\red{ƛƝƧƜЄƦ}[/tex]
System of Linear Equations entered :
[1] x - y = 4
[2] x + y = 9
Graphic Representation of the Equations :
y + x = 4 y + x = 9
Solve by Substitution :
// Solve equation [2] for the variable y
[2] y = -x + 9
// Plug this in for variable y in equation [1]
[1] x - (-x +9) = 4
[1] 2x = 13
// Solve equation [1] for the variable x
[1] 2x = 13
[1] x = 13/2
// By now we know this much :
x = 13/2 y = -x+9
// Use the x value to solve for y
y = -(13/2)+9 = 5/2
Solution :
{x,y} = {13/2,5/2}
Hope it Helps ☺
Related Questions
plz help. pl and thank u
Answers
Answer: sorry i cant read it its to small
Step-by-step explanation:
Answer:
0,2
Step-by-step explanation:
also pls try to answer my question have to finish this
will somebody help me with this question 9 x 3/4
Answers
Answer:
Improper way: 27/4
Mixed number: 6 3/4
Step-by-step explanation:
To make it easier, put a 1 under the 9. So you get 9/1.
It should look like this: 9/1 x 3/4
Then simply multiply 9 and 3 then 1 and 4.
You get 27/4!
Help needed ASAP will give you BRAINLIEST and 5 stars
Answers
Answer:
y-x
Step-by-step explanation:
Answer:
Y=-x
Step-by-step explanation:
Because any other ones have stuff they should.
HELP! PLS ANSWER!!! 45 points!
Answers
Answer:
the answer is 24
Step-by-step explanation:
36 times 2x is 24
90+36=126
180-126=54
54/2=27
x = 27
Hope you enjoy it! :)
BRAINLEST IF ANSWERED CORRECTLY AND QUICKLY
)Which of these describes how children were treated differently from slaves in the Roman Republic?
Children could own property, but a slave's goods belonged to his master.
Children ate three meals per day, but slaves ate one meal per day.
Free children were allowed to vote, but adult slaves could not.
Male children could go to school, but male slaves could not.
Answers
Answer:
c
Step-by-step explanation:
c
7x +6 = 17x
X=____________
Answers
Answer:
[tex]\boxed { x = \frac{3}{5}}[/tex]
Step-by-step explanation:
Solve for the value of [tex]x[/tex]:
[tex]7x + 6 = 17x[/tex]
-Take [tex]17x[/tex] and subtract it from [tex]7x[/tex]:
[tex]7x + 6 - 17x = 17x - 17x[/tex]
[tex]-10x + 6 = 0[/tex]
-Subtract [tex]6[/tex] to both sides:
[tex]-10x + 6 - 6 = 0 - 6[/tex]
[tex]-10x = -6[/tex]
-Divide both sides by [tex]-10[/tex]:
[tex]\frac{-10x}{-10} = \frac{-6}{-10}[/tex]
[tex]\boxed { x = \frac{3}{5}}[/tex]
So, the value of [tex]x[/tex] is [tex]\frac{3}{5}[/tex]
Answer:
coooooooooooooooool
Step-by-step explanation:
For the function f(x) = x + 2, find f-'(x).
Answers
[tex]f(x) = x + 2[/tex]
[tex]y = x + 2[/tex]
Subtract the sides of the equation minus 2
[tex]y - 2 = x[/tex]
So ;
[tex] {f}^{ - 1}(x) = x - 2 [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
A theater owner wants to divide a 3300 seat theater into three sections, with tickets costing $ 60, $70, and $120, depending on the section. He wants to have twice as many $60 tickets as the sum of the other tickets, and he wants to earn $ 224,000 from a full house. Find how many seats he should have in each section.
Answers
Answer:
Section A = 2,200 seats
Section B = 800 seats
Section C = 300 seats
Step-by-step explanation:
Three sections
Section A cost = $60
Section B cost = $70
Section C cost = $120
Total seat = 3300
Total earnings = $224,000
He wants to have twice as many $60 tickets as the sum of the other tickets
A = 2(B + C)
A + B + C = 3,300
60A + 70B + 120C = 224,000
substitute A = 2(B + C)
2(B + C) + B + C = 3,300
60(2B + 2C) + 70B + 120C = 224,000
2B + 2C + B + C = 3,300
120B + 120C + 70B + 120C = 224,000
3B + 3C = 3,300 (1)
190B + 240C = 224,000 (2)
Multiply (1) by 80
240B + 240C = 264,000 (3)
190B + 240C = 224,000 (2)
Subtract the equations
240B - 190B = 264,000 - 224,000
50B = 40,000
B = 40,000 / 50
= 800
B = 800
Substitute the value of B into (1)
3B + 3C = 3,300 (1)
3(800) + 3C = 3,300
2,400 + 3C = 3,300
3C = 3,300 - 2,400
3C = 900
C = 900 / 3
= 300
C = 300
Substitute values of B and C into
A + B + C = 3,300
A + 800 + 300 = 3,300
A + 1,100 = 3,300
A = 3,300 - 1,100
= 2,200
A = 2,200
Section A = 2,200 seats
Section B = 800 seats
Section C = 300 seats
whats the definition of a flow chart proof?
Answers
A flowchart proof is a visual representation of logical steps used to prove a mathematical statement or theorem.
It involves breaking down the proof into a series of connected statements and reasons, organized in a flowchart format.
Each statement is supported by a reason or justification, demonstrating the logical progression of the proof. Flowchart proofs provide a clear and structured way to present mathematical arguments, allowing for easy comprehension and verification of the proof's validity.
They help in identifying key steps, dependencies, and the overall structure of the proof, making it easier to follow and understand the reasoning behind mathematical statements.
Learn more about flowchart here
https://brainly.com/question/34362549
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PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!
Answers
Answer: you have: C(X)=3x+2.00
x=number of minutes
Pay attention to the y=mx+b form where m=slope-->>
3x is the slope...
so it's 3(times the number of minutes) <<---or (x)
This means that the slope is 3, or the fancy way of saying it-->>"rate of change."
The rate of change of the cost of the taxi ride is $3.00 per minute.
Step-by-step explanation:
solve 8 + 7x = 14
solve y + (-12) = 10
Answers
Answer:First one is x=1
second is y=22
Step-by-step explanation:
Answer:
[tex]x = \frac{6}{7}[/tex] y = 22Step-by-step explanation:
For first equation:
Subtract 8 from each side, so it now looks like this: 7x = 6Divide each side by 7 to cancel out the 7 next to x. It should now look like this: [tex]x = \frac{6}{7}[/tex]For second equation:
Simplify: y - 12 = 10Add 12 to each side, so it now looks like this: y = 22I hope this helps!
Lou wants to lose weight to audition for a part in a play. He weighs 160 pounds now. He wants to weigh 150 pounds. If p represents the number of pounds he wants to lose, write an equation to represent this situation.
Answers
Answer:
160-p=150
Step-by-step explanation:
160 now - needs to lose = 150 goal
A car dealer paid $21,000 for a car and marked it up by 1/3 of the price he paid.How much did he sell the car for?
Answers
Answer:
$28000Step-by-step explanation:
Cost of the car = $21000
Mark up = 1/3*21000 = $7000
Sale price = 21000 + 7000 = $28000
Bo has 56 cards.
What are two ways Bo can stack her cards?
Choose 2 answers:
~ 7 stacks of 8 cards
® 9 stacks of 6 cards
C С
8 stacks of 7 cards
D
6 stacks of 9 cards
Answers
Answer:
c
Step-by-step explanation:
y=4x-1
if the value of y is 1 what is x
Answers
If y is 1, then plug 1 in the equation,
1= 4x-1
Add 1 on both sides,
2= 4x
Divide by 4 on both sides,
x= 4/2
Reduce 4/2 to 1/2
Therefore, x= 1/2
Answer:
[tex]x=\frac{1}{2}[/tex]
Step-by-step explanation:
So we are given the equation:
y = 4x - 1
and we are asked to find the value of x when the value of y is 1.
In other words, what is x when y = 1? To find this, we can plug in 1 for y and solve for x.
1 = 4x - 1
Now solve for x. Add 1 to both sides.
2 = 4x
Divide both sides by 4.
[tex]x=\frac{1}{2}[/tex]
So now we have found that when the value of y is 1, the value of x is 1/2.
I hope you find my answer and explanation to be helpful. Happy studying.
Simplify: (2x - 5y)(7x-2y)
help plz
Answers
Answer:
14x+10y
Step-by-step explanation:
(2x-5y)(7x-2y)
(2x*7x)(-5y*-2y)
Solve the compound inequality and graph your solution on the number line.
I WILL GIVE YOU BRAINILIST IF YOU HELP!!
Answers
Answer:
Step-by-step explanation:
-10<x≤10
Open circle on -10
Closed circle on 10
so the perimeter is 20 one side is y another is 4y-8 and slow the other one. what is the side lengths
Answers
Answer:
5
Step-by-step explanation:
The figures are similar. Find the missing length.
Answers
Step-by-step explanation:
Answer:-Given ,The figure is Similar.
Observation:-
Similar figures have similar sides. If we see carefully in smaller triangle, 3 has been added to each side and they are similar. We need to find y.
We have :-
5+3=8 as similar sides.
So, applying same algorithm,
[tex]y + 3 = 5[/tex]
[tex]y = 5 - 3[/tex]
[tex] \boxed{ \tt{y = 2 \ cm}}[/tex]
is the answer.
Hope it helps :)
Martin is building a model. He cuts two pieces of wood that are each 6 1/3 inches long from a board with a total length of 18 inches. What is the length, in inches, of the remaining part of the board?
Answers
Answer:5 1/3
Step-by-step explanation:
Solve the equation for n.
5 = -4 + 27/n
Answers
Answer:
n=3
Step-by-step explanation:
A dime is what fraction of a dollar?
Answers
Answer:
1/10
Step-by-step explanation:
A dime is 1/10 fraction of a dollar.
What are Fractions?Fractions are numbers which are of the form a/b where a and b are real numbers. This implies that a parts of a number b.
Here, a is called the numerator and b is called the denominator. Any number can be expressed as fractions.
We have to convert a dime into a fraction of a dollar.
Number of dimes in a dollar = 10
10 dimes = 1 dollar
1 dime = 1/10 dollar
So we can say that one dime is 1/10 of a dollar.
Hence 1/10 fraction of a dollar is 1 dime.
To learn more about Fractions, click on the link given below :
https://brainly.com/question/10708469
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Can I please get help with this?
Answers
Answer:
first problem) he messed up at 4(1 + 5n), only multiplying the 1 by 4, instead of both the 1 and 5n,
work-
-8n + 4(1 + 5n) = -6n - 14
-8n + 4 + 20n = -6n -14
12n + 4 = -6n - 14
18n +4 = -14
18n = -18
n= -1
second problem) he messed up towards the end, where he put 3x = 3x, then x=0. in this case, x would equal x, so the answer is "infinitely many solutions"
all the other work is correct in that problem
third problem) on the right side of the equation, ( 4x+10+3x-6), when they were adding the like numbers, instead of subtracting 6 from 10, they added 6, giving them 16 instead of 4
correct work-
2x - 8 + 3x +2 = 4x +10 + 3x -6
5x - 6 = 7x + 4
-5x -5x
-6 = 2x +4
-4 -4
-10 = 2x
-5 = x
hope i helped :)
A calculator screen shows a number in scientific notation as 1.16E‒7. Write this number in standard form.
Answers
Answer:
0.000000116
Step-by-step explanation:
When the exponent is negative, the most-significant digit goes in the number place that is that many places to the right of the decimal point.
Here, the most-significant 1 is in the 7th place to the right of the decimal:
1.16E-7 = 0.000000116
Find the value of x so that f(x) = 7.
Answers
Answer:
-2
Step-by-step explanation:
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION RQ PLS!!!!!!!!
Answers
Answer:
10.19 ftStep-by-step explanation:
Circumference formula
C = 2πrSolving for radius
64 = 2*3.14rr = 64/2*3.14r = 10.19 ftFind the slope of the line that passes through (1,7) and (10, 9).
Answers
Answer: 2/9
Step-by-step explanation:
Answer:
2/9
Step-by-step explanation:
y2 - y1 over x2 - x1
Then subtract and get 2/9
Hope this helped and have a great day!
(Please brainliest)
Find the area and perimeter of a rectangular poster measuring 0.73 m by 1.1 m
Answers
А
А
w
B
B
B.
Pair 1
Pair 2
Pair 3
1. Which transformation takes Figure A to Figure B in Pair 1: a translation, rotation, on
reflection? [Select)
2. Which transformation takes Figure A to Figure B in Pair 2: a translation, rotation, on
reflection? (Select ]
3. Which transformation takes Figure A to Figure B in Pair 3: a translation, rotation, on
reflection? Select ]
Answers
Answer:
see below
Step-by-step explanation:
Pair 1 is a rotation since we turn figure A into figure B
Pair 2 is a reflection since we flip figure A into figure B over a horizontal line
Pair 3 is a translation since we slide figure A into figure B by moving it down
PLEASE HELP!! It is a multiple choice so only one answer!
Answers
Answer:
d
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
