According to the system of equations above, what is
the value of x ?
Need someone to explain how to do it
Answers
Answer:
7
Step-by-step explanation:
try substituting
crossmultyply
x=-9-y
substituting
-9-y=-25+9
y=16
substituting
pick one of the equations
x+y=-9
x-16=-9
x=-9+16
x=7
Related Questions
Anne buys used cars at auction for 2000 per car if anne buys 13 ised cars how much did she pay in total what would be an equation
Answers
Answer:
26,000
Step-by-step explanation:
$2,000 per car x 13 used cars
The coordinates of point T are (0,3). The midpoint of ST is (5,-4). Find the coordinates of point S.
Answers
Is the square root of 9 less than 3.54
Answers
Answer:
yes
Step-by-step explanation:
the square root of 9 is 3 so 3.54>3
Solve the inequality. 1/2 (8x − 2) − 2/3 (9x + 3) ≤ 8
Answers
Answer:
x ≥ -11/2
Step-by-step explanation:
Step 1: Write inequality
1/2(8x - 2) - 2/3(9x + 3) ≤ 8
Step 2: Solve for x
Distribute: 4x - 1 - 6x - 2 ≤ 8Combine like terms: -2x - 3 ≤ 8Add 3 to both sides: -2x ≤ 11Divide both sides by -2: x ≥ -11/2whhy was this guy wrong????
Answers
Answer:
Step-by-step explanation:it should have been like the above question.
4+4+4+4+4+4
A number and its additive inverse, or opposite are considered what
Answers
additive inverse. and additive inverse of a number “a” is the number that, when added to “a”, yields 0. this number is also known as the opposite (number), sign change, and negation. For a real number, it reverses its sign: the opposite to a positive number is negative, and the opposite to a negative number is positive.
y - 7.3 = 2(x - 8.8) slope =
Answers
Answer:
Step-by-step explanation:
Ruth wants to purchase a new video game that costs $59.00 and several bags of chips, c, that sell for $1.99 each. She can spend no more than $75.00. Which inequality and its solution represents her possible purchase?
Answers
Answer:76$
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
1.99 x chips + 59 game must cost less than 75
PLEASE HELPPPPPPBobby took out a single loan for $500 and paid a $50 fee. His loan is due in 1 week. Find the effective interest rate on the loan Bobby took out. Round the answer to one decimal place.
Answers
Answer:
He took a loan of $500 and paid a fee of $50 on the loan. This means that #500 divided by $50 =10%
You spend 30 minutes watching television . You then spend 2 hours playing video games . Write the ratio of the amount of time spent to the amount of time spent as a fraction in simplest form.
The ratio in simplest form is ???
Answers
Answer:
television/ video games= 1/4
Step-by-step explanation:
cuz there are 2 sets of 30 min in an hour, make the video games time 4 sets of 30 min, and the tv time 1 set. so , the ratio would be 1/4.
The ratio of the amount of time spent on watching television to the amount of time spent on playing video games as a fraction in the simplest form is 1 : 4.
What is ratio?Ratio basically compares quantities, that means it shows the value of one quantity with respect to the other quantity.
If a and b are two values, their ratio will be a:b,
Given that,
Time spend on watching television = 30 minutes.
And time spend on playing video games = 2 hours.
To find the ratio of the amount of time spent on watching television to the amount of time spent on playing video games,
Use ration property,
Ratio = time spend on watching television/ time spend on playing video games
= 30 minutes / 2 hours
= 30 minutes / 2 x 60 minutes
= 1 / 4
Ratio = 1 : 4
The required ratio of time spend on television to time spend on playing video games is 1 : 4.
To learn more about Ratio on :
https://brainly.com/question/13419413
#SPJ2
1: Ten baseballs weigh 1,417.4 grams. About how much does 1 baseball weigh? 2: Round your answer to the nearest tenth of a gram. 3:Round your answer to the nearest gram. 4: Which answer would you give if someone asked, "About how much does a baseball weigh?" Explain your choice.
Answers
Answer:
141.74 grams
Step-by-step explanation:
According to the given situation, the computation of each baseball weighs is shown below:-
Each baseball weighs = Total weight of all ten baseballs ÷ Total amount
= 1,417.4 ÷ 10
= 141.74 grams
Therefore for determining the each baseball weighs we simply applied the above formula.
The same is to be considered
When I was riding 50 feet I drove back 20 feet how much feet did I ride ..... :( respond back as soon as possible
Answers
Write an equation of a line that has a slope of 1/2 and has a point at (2, 5).
Answers
y-5 = 1/2 ( x-2)
y -5 = 1/2x -1
y = 1/2x + 4
Someone please helppp.
Answers
Answer:
11 times
Step-by-step explanation:
For every muffin, she uses 1/3 cup of sugar. 3 2/3 = 11/3
11/3 divided by 1/3 is 11.
Add:
-4 + 2 =
Submit
Answers
Answer:
-2
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
If you take 4 and 2 and then subtract them you will get 2.
Now, look at the problem and see which number is bigger.
4 is bigger and it has a negative in front of it.
So it will be -2.
Point V is the midpoint of line MP.
If VP = 4x – 6, and MP = 6x + 2.
Find the length of line MP.
Answers
Answer:
44
Step-by-step explanation:
1. Since point V is the midpoint of line MP, VP is half of MP.
2. Since VP is half of MP, 2(4x-6) = 6x+2
3. [tex]\frac{2(4x-6)}{2} =\frac{6x+2}{2}[/tex]
4. 4x-6 = 3x+1
5. x = 7
6. Substitute x with 7 on equation 6x+2. 6(7)+2
7. Answer 44.
What’s the x and y intercepts of this equation: -3x-7y=84
Answers
Answer:
The X and Y intercepts to the equation -3x - 7y = 84 is
x-intercept (s): (−28,0)
y-intercept (s): (0,−12)
Step-by-step explanation:
To find the x-intercept(s), substitute in 0 for y and solve for x
−3x−7⋅0=84
Solve the equation.
x=−28
x-intercept(s) in point form.
x-intercept (s): (−28,0)
To find the y-intercept(s), substitute in 0 for x and solve for y .
−3⋅0−7y=84
Solve the equation.
y=−12
y-intercept(s) in point form.
y-intercept (s): (0,−12)
Hope this helps.
A bus took a 12-hour trip and traveled 700 miles. The speed was 75 mph for the first part of the trip, and then decreased to 50 mph for the second part of the trip. How many hours were traveled at each speed?
_____ hours at 75 mph
_____ hours at 50 mph
Answers
a pulley rotates through 65 in 2 minutes. how many rotations does the pulley make in 4 hours
Answers
Answer: 15600 rotations
Step-by-step explanation:
A) Antoine's family is taking a summer vacation through the northern united states on day one of the trips the family will be travelling 85 miles on day two of the trip they will travel 125 miles on the third day they will travel 176 miles how many kilometres will Antoine and his family travel each day? (calculate to the nearest kilometres.) b) How many miles and kilometres will they travel in total?
Answers
Answer:
621.207kmStep-by-step explanation:
We are expected to convert from miles to kilometer
first day 85 miles =136.794km
Second day 125 mile=201.168km
third day 176 miles =283.245km
Total distance covered is
136.794km+201.168km+283.245km=621.207km
Therefore the total distance in kilometer is 621.207km
76+-90-(-48)
Help!!!!!!!!!!!!!!!! Pls
Answers
Answer:
Answer
If we add 76+(-90)-(-48)=34
Select all statements that are true of polynomials:
Answers
Answer:
All of them are true except the 5th from the top
Step-by-step explanation:
EMERGENCY! Please give me the correct answer!
Answers
Answer:
6^10
Step-by-step explanation:
6^0 is essentially just 1. So 6^10 x 1 is 6^10.
Answer:
6^10
Step-by-step explanation:
When multiplying exponents with the same base number, you simply add the exponents and keep the bases the same
a^m * a^n = a^m+n
6^10 * 6^0 = 6^10+0
You can also look at it this way:
Any non-zero number to the power of 0 will ALWAYS equal 1
a^0=1
6^10 * 6^0 = 6^10 * 1 = 6^10
The fastest lion ever recorded ran approximately 402 meters in 18 seconds. Which expression shows how to correctly determine the speed in meters per second?
Answers
Answer
402 meters ÷ 18 seconds
Step-by-step explanation:
Answer:
402 meters ÷ 18 seconds
Step-by-step explanation:
While doing this sorta math to find the speed it will always be how long ÷ by how long or time!
........................Hope this is helpful have a nice day!.......................Pls need help been struggling hard
Answers
Answer:
10. X = 2.75
11. X = 1.61
Hey there, I have the steps listed below but what is the problem asking, I cannot solve it unless it explains the problem. Thank you!
Step-by-step explanation:
10. 5x + 10 + 11x + 2 = 56
16x + 12 = 56
16/16x = 44/16
X = 2.75
11. -1 + 8x + 18x + 5 = 46
26x + 4 = 46
26/26x = 42/26
X = 1.61
~I hope I helped you! :)~
Problem 10
Answers:x = 11angle UTS = 65angle AUT = 123-----------------------
Explanation:
The remote interior angles UTS and TSU add to the exterior angle AUT. This is because of the remote interior angle theorem. The interior angles you add cannot be adjacent to the exterior angle.
(angle UTS) + (angle TSU) = angle AUT
(5x+10) + (58) = 11x+2
5x+10+58 = 11x+2
5x+68 = 11x+2
68-2 = 11x-5x
66 = 6x
6x = 66
x = 66/6
x = 11
Use this x value to find that...
angle UTS = 5x+10 = 5*11+10 = 65
angle AUT = 11x+2 = 11*11+2 = 123
==========================================
Problem 11
Answers:x = 4angle CDB = 31angle WBC = 77-----------------------
Explanation:
We'll use the same theorem as before
(angle BCD) + (angle CDB) = angle WBC
(46) + (-1+8x) = 18x+5
46-1+8x = 18x+5
8x+45 = 18x+5
45-5 = 18x-8
40 = 10x
10x = 40
x = 40/10
x = 4
angle CDB = -1+8x = -1+8*4 = 31
angle WBC = 18x+5 = 18*4+5 = 77
What is 3n² = 243
I NEED THIS ANSWER QUICKLY!!!!
Answers
Answer:
n=9
Step-by-step explanation:
You use reverse PEMDAS.
First you would divide by 3 on both sides. This should give you:
n²=81
Then you would find [tex]\sqrt{81}[/tex]. Which is 9.
If a change of adding 5 to a set of data. How the range will be affected?
1. will be added by 5
2. will be subtracted by 5
3. will be multiplied by 5
4. will not be affected
Answers
The graph shows the amount of money paid when purchasing bags of peanuts at the zoo:
A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. The four points shown on the graph are ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars.
Write an equation to represent the relationship between the total cost (y) and the number of bags of peanuts (x).
y = 4x
y = one-fourth x
y = 3x
y = one-third x
Answers
Answer:
dive the cost by the number of bags for each dot:
4 / 1 = 4
8 / 2 = 4
12 / 3 = 4
This means each bag cost $4
The equation would be Y = 4X, because you would multiply each bag bought (X) by $4 to get the total cost (Y).
Step-by-step explanation:
BRAINLYIS TPLS
What is the angle relationship ?
Answers
Answer:
x and y are Vertical angles
one more than three times a number is the same as twice the same number increased by 5. what is the number?
Answers
Answer:
3x+1=2x+5
Sometimes I might be wrong.
<3, Red
Answer:
4
Step-by-step explanation:
3x+1=2x+5
3x-2x=5-1
x=4