Answer:
x= 4 and y=1
Step-by-step explanation:
to solve this you could either use substitution or elimination. elimination would be best her because both 'x's have the same number. subtract the equations from eahh other and solve for y, then substitute the y and solve for x
The system of equations are solved and x = -4 and y = 1
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
To solve the system of equations:
5x + y = -19 (Equation 1)
5x - 4y = -24 (Equation 2)
Let's use the elimination method in this case.
Step 1: Multiply Equation 1 by 4 and Equation 2 by 1 to eliminate y.
4(5x + y) = 4(-19)
5x - 4y = -24
20x + 4y = -76 (Equation 1 multiplied by 4)
5x - 4y = -24 (Equation 2 multiplied by 1)
Step 2: Add the equations together to eliminate y.
20x + 4y + 5x - 4y = -76 - 24
25x = -100
x = -100 / 25
x = -4
Step 3: Substitute the value of x into either Equation 1 or Equation 2 to solve for y.
5(-4) + y = -19 (Using Equation 1)
-20 + y = -19
y = -19 + 20
y = 1
Hence , the solution to the system of equations is x = -4 and y = 1
To learn more about equations click :
https://brainly.com/question/19297665
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Determine the length of the hypotenuse. Round your answer to the nearest tenth, if necessary.
Answer:
12.7
Step-by-step explanation:
[tex]9^{2}+9^{2}= 162\\\\\sqrt{162}= 12.7[/tex]
4x > 20 Is x=12 a solution?
yes or no
no
Hope this helps
:T
:B
:D
From what we have, x can equal 12
4x > 20
20/4 = 5
x > 5
12 > 5
50 POINTS MARKING BRAINLIEST PLEASE HELP! Find the surface area of the cube. (2 pts correct answer, 1 pt for showing your thinking)
Answer:
150cm²
Step-by-step explanation:
Side= 5cm
So, 6x5²=6x5x5
6x5x5=150cm²
Hope it elps, plz mark me as brainliest.
PLEASE HELP !
Determine whether each equation represents a linear or a nonlinear function
Select Linear or Nonlinear for each equation
Step-by-step explanation:
Note:
Linear equations will never exponents in its equation such as
[tex] {x}^{2} \\ y = {x}^{3} [/tex]
as those equations will produce curly graphs.
Nonlinear equations will either contain exponents or logarithms (eg. ln2)
pls help 1755.97809915 round to the nearest cent
Answer:
1755.98
Step-by-step explanation:
1755.97809915
1 cent is 1 hundredth of a dollar, so to round to the nearest cent means to round to the nearest hundredth.
The 7 in boldface is the hundredths place.
Drop all digits to the right of the 7.
1755.97
dropped digits: 809915
Look at the leftmost digit that was dropped (in boldface). If it is from 0 to 4, you are done, and the answer is 1755.97. If the leftmost digit that was dropped is from 5 to 9, the hundredths digit goes up by 1. Here, the first digit that was dropped is an 8, so the 7 in the hundredth place goes up 1 to 8.
Answer: 1755.98
need help fast with math problem!!!!
i really need help please
Answer:
a = 4, x = 1
Step-by-step explanation:
The opposite sides of a parallelogram are congruent , then
WX = YZ , that is
a² + 5a = 5a + 16 ( subtract 5a from both sides )
a² = 16 ( take the square root of both sides )
a = ± [tex]\sqrt{16}[/tex] = ± 4
Since a > 0 , then a = 4
Also
XY = WZ , that is
x² + 6x = 4x + 3 ( subtract 4x + 3 from both sides )
x² + 2x - 3 = 0 ← in standard form
(x + 3)(x - 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 3 = 0 ⇒ x = - 3
x - 1 = 0 ⇒ x = 1
Since x > 0 , then x = 1
Mrs. James has $40.50 to spend at the store. She wants to buy a dress that costs thirty dollars and necklaces that cost $3.50. How many necklaces can she buy?
Answer:
3 necklaces
Step-by-step explanation:
$40.50-$30.00=$10.50 Subtract her total money and cost of dress
$10.50-$3.50=$6.00 subtract each necklace price from remaining money
$6.00-$3.50=$3.50 keep subtracting price of necklace
$3.50-$3.50=$0 that was 3 necklaces
Un grupo de 4 amigos va al cine y las entradas les han costado 24$.¿cuanto pagaria en total un grupo de 7 amigos por sus entradas?
hi
4 entries are 24 so one entry is 24/4 = 6
so 7 friends pay 6*7 = 42
A graph of a system of two equations is shown. PLEASE HELP!!!!!
Answer:
(-4.5, 1.5)
Step-by-step explanation:
what foes the graph of profits as a function of the number of hats sold look like?
What is the best estimate for 42% of 68?
Answer:
29 when rounded up 27 when rounded down and 28.56 in genral
Step-by-step explanation:
Answer:
28 or 30
Step-by-step explanation:
42 to 40 and 68 to 70 then
hope this helps :b
Choose the function that the graph represents.
Click on the correct answer.
y = f(x) = log2X
y = f(x) = x2
y = f(x) = 2x
Hi there!
[tex]\large\boxed{y = f(x) = log_{2}x}[/tex]
We can go through each given function and determine whether the graph is its representation:
y = f(x) = log₂x. The graph pictured is logarithmic as it contains a vertical asymptote (discontinuity) at x = 0.
y = f(x) = x². This equation contains a parabolic shape. This is incorrect.
y = f(x) = 2ˣ. This equation is an exponential, increasing function. This is incorrect.
Another way to check would be to use the point on the graph (1, 0), and plug the corresponding x and y values into each function.
For example:
0 = log₂(1) is correct.
0 = (1)² is incorrect.
0 = 2¹ is incorrect.
Answer:
The answer is y=f(x) = log2x
Step-by-step explanation:
took the test and got it right hope you guys do well !!
i need help to pass math
Answer:
40.82
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
C = 2πr
81.64 = 2(3.14)r - divide both sides by 2
40.82 = 3.14r - divide both side by 3.14
13 = r
A jacket that regularly sells for $153 was on sale for 40% off the regular price. What is the sale price?
Answer:
The sale price is %91.80.
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
PLEASE HELP ME IM IN 7th GRADE
Answer:
if the whole thing equals 110, then subtract 49 from 110 and you'll get 61 and that is your answer
Step-by-step explanation:
Vince and 11 of his friends went out for pizza on Saturday night to celebrate Vince’s birthday. The cost of the pizza and soft drinks before sales tax and tip was $47.96. What is the amount of sales tax for the bill if the rate is 7%?
Answer:
$3.36
Step-by-step explanation:
47.96×7%=$3.357
Answer:
About $3.36
47.96 x 0.07 = 3.3572 rounded up is 3.36
plz help i will give brainliest
Answer:
[tex] m\angle XYZ = 70\degree [/tex]
Step-by-step explanation:
By exterior angle theorem:
4x° = 2x° + 70°
4x° - 2x° = 70°
2 x° = 70°
2x = 70
x = 70/2
x = 35
[tex] m\angle XYZ = 2x\degree [/tex]
[tex] m\angle XYZ = 2\times 35\degree [/tex]
[tex] m\angle XYZ = 70\degree [/tex]
PLEASE HELP ME NOW ASAP I HAVE A MIN LEFT
Answer: B
Step-by-step explanation:
PLEASE HELP I GIVE BRAINLIEST
Mhanifa can you please help? I will mark brainliest!
Answer:
Property of kite used to solve this
Diagonals are perpendicularOne diagonal is an angle bisector (WY)(20)
∠XYZ is double the ∠XYV∠XYV is complementary with ∠VXYm∠XYZ = 2(90° - 58°) = 64°(21)
∠VZW is complementary with ∠VWZ and ∠VWZ is half of ∠ZWXm∠VZW = 90° - 50°/2 = 65°(22)
∠ZWV is half of ∠ZWXm∠ZWV = 1/2*50° = 25°(23)
m∠WZY = m∠VZW + m∠VZY = m∠VZW + m∠VXYm∠WZY = 65° + 58° = 123°What is the value of x in the equation below?
One-third (12 x minus 24) = 16
2
6
8
10
Answer:
X=2
Step-by-step explanation:
Using distributive property: 1/3(12x-24)=16
4x- 8=16
Using oposite oporations on both sides:
4x-8=16
4x+8=16-8
4x=8
8/4=2
x=2
can I have brainliest please
Answer:
a
Step-by-step explanation:
Reduce your fraction into lowest terms.
x + 2x +17=25 I need the answer and need do you know how to check if it's right
Answer:
x=8/3
Step-by-step explanation:
x+2x+17=25
3x+17=25
3x=8
x=8/3
Answer:
X = [tex]\frac{8}{3\\}[/tex]
Step-by-step explanation:
Simplify:
5 1/2 - 2 1/4
1 3/4 + 1 1/2
There are 8 oranges, 5 apples, and 6 bananas In the fruit basket.
-Bob says the ratios of apples to bananas is 5:6
-Rob says the ratios of bananas to apples is 6:5
-Thob says that the ratios of apples and bananas to all the fruit is 11:19
Who is correct? I REALLY need an explanation.
Step-by-step explanation:
all of them are correct
there are 5 apples and 6 bananas
there are 6 bananas and 5 apples
5 apples plus 6 bananas=11
8 oranges+5 apples+6 bananas=19
so the ratio is 11:19
Answer:
they are all correct
Step-by-step explanation:
a ratio is a comparison saying that for every group of numbers that there will be another group of numbers for example
the ratio of apples to bananas is
number of apples->5:6<- number of bananas
so of the ratio stays the same then for every 5 apples added to the basket then 6 bananas will also be added(works other way to)
solve by factoring
x^2-10=9x
Answer:
x=10
Step-by-step explanation:
x^2 - 10 - (9x) = 0
x^2 - 9x - 10 = 0
(x - 10) + (x + 1) = 0
x= 10
x = -1
PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEE HELPPPPPPPPPPPP
Answer:
L=74
W=77
Step-by-step explanation:
Answer:
L=74 and W=77
Step-by-step explanation:
first the area of a rectangle is length of breath
A=L X W
4514= L X 61
61L=4514
L=4514/61
L=74m
b. perimeter =2(L + W)
338=2*92+ 2W
338=184+2W
2W=338-184
2W=154
W=154/2
W=74
Estimate the correlation for this scatterplot.
Answer choices:
A) -0.95
B) 0.95
C) 0.15
D) -0.35
6m+5=m+20 pls help now
Answer:
m = 3
Step-by-step explanation:
Answer:
m = 3
Step-by-step explanation:
6m + 5 = m + 20
6m + 5 - 5 = m + 20 - 5
6m = m + 15
6m - m = m - m + 15
5m = 15
5m ÷ 5 = 15 ÷ 5
m = 3