1. Solve the system using substitution
x = 3y - 1
x + 2y = 9
Answers
Answer:
see pic below (Brainliest pls)
Step-by-step explanation:
Related Questions
The lengh of the iscosles traingle are 9 cm and 20 cm. what is the perimeter of the traingle? give reason
Answers
Step-by-step explanation:
In every triangle, length of two sides must be greater (not equal or lesser) than the length of third side of the triangle...so it is not possible to have triangle of side lengths 9 9 and 20. Apologies if i m wrong.
Lamar planted 56 flowers in his garden. The ratio or orange to yellow flowers planted was 25
2
5
. How many yellow flowers did Lamar plant?
Answers
Answer:
I think its 31
Step-by-step explanation:
because the ratio was 25/56 of orange flowers,
so the rest of them are yellow
Express this number in scientific notation. 0.15880.1588
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Answer: 1.588×10−1 (The negative one is small on the top right of the 10)
Step-by-step explanation: Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
HELP ASAP PLEASE!!!
Look at this graph.
What is the equation of the line in slope-intercept form?
Answers
What is 4x 2/3
As a improper fraction and mixed number
Answers
Answer:
the improper fraction is 6/3 and the mixed number is 1 2/3 these are the answers to your questions
Step-by-step explanation:
please mark me brainlest
A improper fraction and mixed number are,
⇒ 8/3 and 2 2/3
We have to given that,
An expression to solve,
⇒ 4 × 2/3
Now, We can simplify for the improper fraction and mixed number as,
⇒ 4 × 2/3
⇒ 8 / 3
⇒ 2 2/3
Therefore, A improper fraction and mixed number are,
⇒ 8/3 and 2 2/3
Learn more about the fraction visit:
https://brainly.com/question/5454147
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Calculate value of x
A=24.9
B=19.1
C=10.3
D=12.3
Answers
Answer:
C. 10.3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangle Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use Trig Rations to solve for the missing side
Step 2: Identify Variables
Adjacent leg = x
Hypotenuse = 16
Angle ∅ = 50°
Step 3: Solve for x
Set up equation: cos50° = x/16Isolate x: 16cos50° = xEvaluate: 10.2846 = xRewrite: x = 10.2846What is the value of g divided by 4, if g = 20?
Answers
G divided by 4 will be 5.
If g equals 20, and you divided 20 by 4, your quotient will be 5.
Hope this helps and Happy Holidays! :D
Answer:
5
Step-by-step explanation:
I took the test and got a 100%
Brad went to the mall and bought two sweaters and a pair of pants for $120. The next week he went to the mall and bought one sweater and two pairs of pants, at the same price as last week, for $120. The cost of one sweater is .
Answers
Answer:
I think 40. I am sorry if Im wrong.
Answer:
Sweater=40
Step-by-step explanation:
2s+p=120
s+2p=120
s=p
120/3=40
Is it positive 2 or negative 2?-
Answers
Answer:
negative i think :/
Step-by-step explanation:
Which number line represents the solution to the inequality −7x−13≥8
−
7
x
−
13
≥
8
?
Answers
Answer:
x≥−
7
13
Step-by-step explanation:
-7x<=13
What are the measures of the angles in the triangle?
(6x + 10°
(x + 17)
(4x - 34)
O 34; 112; 112
078; 51; 51
O 112; 34; 34
O 60; 60; 60
Help it’s times
Answers
Answer:
it is either A or D
Step-by-step explanation:
Ant Farming You have an ant farm with 33 ants. The population of ants in your farm will double
every 3 months. The table shows the population growth of the ants over nine months. Decide whether
the table represents a linear function or a nonlinear function. After one year, how many ants will there
be in the ant farm?
Population of Ants
Number of
0 3 6 9
Months
Population 33 66 132 264
The table represents a __
function.
After one year there will be __ ants in the ant flarm.
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Answer:
linear, 264*2 = 528
Step-by-step explanation:
The cost of a gallon of orange juice is $2.50. What is the maximum number of containers you can buy for $17?
Answers
Answer:
6
Step-by-step explanation:
17/ 2.5 = 6.8
You can buy 6 gallons
Answer: 6 with a remander of $2
Step-by-step explanation:
SOMEONE PLZZZ ANSWER THIS IM VERY BAD AT THIS!!
Use the image below to answer the following parts.
Three adjacent angles where the angles are represented as expressions.
Part A: What is the relationship between the angles shown? Explain.
Part B: What is the value of x? Show all work.
Part C: What is the measure of ∠ABD,∠DBK,∠KBC? Show all work
Answers
Answer:
Step-by-step explanation:
A. Linear- the add up to 180
B. 3x-5+2x+3+4x+2=180
9x=180
x=20
C. plug x in
ABD- 55, DBK- 82, KBC- 43
HELP consider the table of values shown . The relationship of x to y is represented by which equation ?
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Whatever the x value is you have to add 9 to it.
someone help please! i’ll give extra points
Answers
Answer:
the rate is +2
starting value is -4
equation:
y = x*2-4
Step-by-step explanation:
Can somebody help me? Thank you!
Answers
Answer:
SSS
Step-by-step explanation:
XW = YZ by reflective the line
XY = WZ by the two lines
and XZ = XZ by reflective property of congruence
Answer: SSS = SSS
Step-by-step explanation:
if we look for the 3 aspects of the triangle that we can work with, we only see that they specifically provide us with 2. they are both sides, so we know that it has a least 2 letter S's in the answer. but, we also can see that they share a side. that means that that side is congruent too. so, it is SSS = SSS.
can anyone please help me with this? i need a step by step explanation please! very appreciated:)
y=5x-9
y=3x+7
Answers
Answer:
Step-by-step explanation:
x and y are variables. That means they represent numbers that are unknown. When we solve for x or y, we are trying to find what number the variable represents.
Y is a number that equals both 5x-9 and 3x+7. If it is a number, it can only have one value, so we can say that 5x-9 and 3x+7 have the same value.
In other words, 5x-9 = 3x+7.
Another way of thinking about this step is substitution. y=3x+7, so in the equation y=5x-9, we can replace the y with 3x+7. It will give 3x+7 = 5x-9.
In either case, we have this new equation
5x-9 = 3x+7.
From here it's just simple algebra- subtract 3x from each side
2x -9 = 7
and add 9 to each side
2x = 16
and divide each side by 2.
x = 8.
All these steps work because if two things equal each other, when you do the same thing to both of them (such as add 9), the new values will still equal each other.
Now that we know that x = 8, we can take one of the original equations
y=5x-9
and put 8 in for x.
y=5*(8) -9.
If x represents the value 8, we can obviously switch out x for 8.
Now simplify
y=40 -9
y = 31
Now we know that x = 8 and y = 31.
Answer:
x=8 and y=31
Let's solve your system by substitution.
y=5x−9;y=3x+7
Step: Solve y=5x−9for y:
y=5x−9
Step: Substitute5x−9foryiny=3x+7:
y=3x+7
5x−9=3x+7
5x−9+−3x=3x+7+−3x (Add -3x to both sides)
2x−9=7
2x−9+9=7+9(Add 9 to both sides)
2x=16
2x/2=16/2 (Divide both sides by 2)
x=8
Step: Substitute 8 for x in y=5x−9:
y=5x−9
y=(5)(8)−9
y=31 (Simplify both sides of the equation)
Answer:
x=8 and y=31
NOTE: Please give the brainly to the first answer
HOPE THIS HELPS <33333
-Silver
Help me and I’ll give BRAINLEST
Answers
Answer:
The expression I got is (12d+12m+3a+6c)
HELP!!!! THIS IS DUE AT 9:30!!!
Answers
Answer:
C) x=8
Step-by-step explanation:
180=40+(8x-24)+(6x+10)
180=26+14x
154=14x
11=x
[tex]11\neq8[/tex]
Tyler’s brother works in a shoe store. The store was selling a pair of shoes for $80. They now are on sale for $50. What is the percentage of markdown on the shoes?
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Given f(x) = 4x + 10, the value of f(-2) is?
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f(-2) = -8 + 10
Answer: f(-2) = 2
bj...
Suppose that you own a compact car
that you bought new for 18,000 dollars.
The value of this particular make of car is
known to depreciate at a rate of 20%
per year.
Define a unit for each quantity in the
worksheet. Then enter a variable for
the time since you bought the car new
Answers
Answer:
Depreciation and Written Down Value for first 5 years of purchase is explained.
Step-by-step explanation:
The Car was purchased for $18000 this will be depreciated at a rate of 20% per year.
Declining Method
Year 1
$18,000 * 20% = $3,600 Depreciation
$18,000 - $3,600 = $14,400 Written Down Value WDV
Year 2
$14,400 * 20% = $2,880 Depreciation
$14,400 - $2,880 = $11,520 WDV
Year 3
$11,520 * 20% = $2,304 Depreciation
$11,520 - $2,304 = $9,216 WDV
Year 4
$9,216 * 20% = $1,843 Depreciation
$9,216 - $1,843 = $7,373 WDV
Year 5
$7,373 * 20% = $1,475 Depreciation
$7,373 - $1,475 = 5,898 WDV
please help me thanks
Answers
Answer:
C:124
Step-by-step explanation:
10+2=12
30+20=50
10+30=40
2+20=22
12+50+40+22=124
What is the slope of this here line?
Answers
Answer:
3/5
Step-by-step explanation:
It rose 3 and ran 5 (rise over run)
Translate the sentence into an inequality.
A number b divided by 7 is at least – 16.
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Answer:
Step-by-step explanation:
[tex]\frac{b}{7}[/tex] ≥ - 16
I will mark you brainliest!!!!!!!!!!!!!!!1
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Answer:
I got 3/10 of the book.
I hope is correct.
Step-by-step explanation:
(1/4) : (5/6)
1/4 * 6/5
6/20
3/10
which statement is true?
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WHO WANTS BRAINLIESTT ?????? PLEASE answer this question correctly !!!! STEP BY STEP !!!!!!!!!!!!!!!
Answers
Answer:
x = 45
y = 60
Step-by-step explanation:
2x = 90
2x (1/2) = 90 (1/2)
x = 45
3y - 2y = 90
3y - 2(45) = 90
3y - 90 = 90
3y - 90 (+90) = 90 (+90)
3y = 180
3y (1/3) = 180 (1/3)
y = 60
Hope this helps :)
Evaluate the expression when m= -6.
m^2 + 7m+8
Answers
Answer:
2
Step-by-step explanation:
(-6)^2+7(-6)+8
36-42+8
=2