Answer:
c. (1/2, 8)
Step-by-step explanation:
To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.
Choose one of the equations and solve it for x by isolating x on the left hand side of the equal sign.
-2x + y = 7
Step 1: Subtract y from both sides of the equation.
-2x = -y + 7
Step 2: Divide both sides by -2
x = 1/2y - 7/2
Substitute what you see above this statement for y in the other equation.
6(1/2y - 7/2) + y = 11
Step 3: Multiply 6 by 1/2y - 7/2.
3y - 21 + y = 11
Step 4: Combine y and 3y.
4y - 21 = 11
Step 5: Add 21 to both sides
4y = 11 + 21
4y = 32
Step 6: Divide both sides by 4.
y = 32/4
y = 8
Step 7: Substitute 8 for y in x = 1/2y - 7/2 Because the resulting equation contains only one variable, you can solve for x directly.
x = 1/2(8) - 7/2
Step 8: Multiply 1/2 by 8.
x = 4 - 7/2
Step 9: Add -7/2 to 4.
x = 1/2
The system is now solved, and we get C (1/2, 8) as our answer.
Answer:
C
Step-by-step explanation:
I did the test myself
what is the mean of the data set below 2, 3, 5, 6, 6, 10, 15, 15,
What is the angle of rotation counterclockwise about the spinner’s center that maps label h to label A? 252° 324° 144° 216°
Answer:
its 324
Step-by-step explanation:
What is the measure of an angle that is 3/6 of a circle?
Answer:
180 degrees
Step-by-step explanation:
A whole circle is 360 degrees and 3/6 of that (or 1/2) is 180 degrees. I hope this helps!
Please help links=report and if correct I’ll mark you brainiest
Answer:
A is the correct answer.
Hope this helps [tex]\mathtt{: )}[/tex]
Plz help meeeeeeee I need help
Answer:
5.25 miles per hour
Step-by-step explanation:
A water pipe has a flow of 2 gallons per minute how many 2 qt could fill it in 1/2 hour?
Answer:
60 Gallons in 1/2 hour. So we can convert that to 240 quarts. it says 2 so we divide that by two. 240/2=120
Step-by-step explanation:
Hope this helps!
Determine the value of x in the figure below:
A
43.23
B
.02
C
48.95
D
31.95
Answer:answer is D
Step-by-step explanation:
Please help will give brainliest
Answer:
A) 18cm^2
Step-by-step explanation:
(3 x 12)/2=36/2=18
Answer:
A
Step-by-step explanation:
12x3=36/2=18
At a hockey game a vendor sold a combined total of 102 sodas and hot dogs the number of hot dogs sold are 50 less than the number of sodas sold find the number of sodas sold and the number of hot dogs sold
Answer:
26 hotdogs
76 sodas
Step-by-step explanation:
x - 50 for hot dogs
x for sodas
(x-50) + x = 102
2x -50 = 102
2x = 152
x = 76
76-50 = 26 hotdogs
76 sodas
Please help with this!
Answer:
1) 7:9
2) 343:729
3) 16:9
4) 64:27
5) 9:11
6) 81:121
Can you answer 1 and 2
Answer:
You have them both correct. #1 is B #2 is C
Step-by-step explanation:
What is the value 8x=5x+21
Kay feels that if she earns a profit of 40.00 at this craft, her business will be successful enough for her to branch out to other craft fairs. How many ornaments does she have to sale to earn a 40.00 profit. Write and solve an equation then explain how the steps and operations used in your algebraic solution compare to an arithmetic solution
6x-2.50x-30=40
3.50x-30=40
3.50x=70
x=20 ornaments
Kay has to sell 20 ornaments to get a profit of $40.00.
What is an Equation?An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.
Cost for the table = $30
Cost for each ornament = $2.50
Selling price of each ornament = $6.00
Profit = Revenue - Expense
Let x be the number of ornaments sold to get a profit of $40.00.
Revenue = 6x
Expense = 30 + 2.5x
6x - (30 + 2.5x) = 40
3.5x - 30 = 40
3.5x = 70
x = 20
Hence selling 20 ornaments would give Kay a profit of $40.00.
Learn more about Equations here :
https://brainly.com/question/29657992
#SPJ2
The complete question is as follows :
Kay's mother taught her how to make handmade ornaments to sell at a craft fair. Kay rented a table at the fair for $30 and set up her work station. Each ornament that she makes costs approximately $2.50 for materials. She sells each ornament for $6.00.
Kay feels that if she earns a profit of 40.00 at this craft, her business will be successful enough for her to branch out to other craft fairs. How many ornaments does she have to sale to earn a 40.00 profit. Write and solve an equation then explain how the steps and operations used in your algebraic solution compare to an arithmetic solution.
Which describes a number that cannot be irrational?
a number that can be used to solve an algebraic equation
a number that represents the ratio of the circumference to the diameter of a circle
a number that represents the length of the diagonal of a square
a number that can be written as the ratio of two integers
1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez1+1=2 ez
A 25-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is one inch more than five times the length of the first piece. Find the lengths of the pieces.
Answer:
3 inch 6 inch 16 inch 3+6+16 = 25
Step-by-step explanation:
First piesce = F
Second piece = 2F
third piece = 5F+1
F + (2F) + (5F+1) = 25
8F +1 = 25
subtract 1 om both sides
8F = 24
divide both sides by 8
F= 3
3X2= 6
3X5 +1 = 16
Please help:(
A. D: (2, 1, 0, -2, -3), R (1, -3, -3, -3, -4}
B. D: (-3, -2, 0, 1, 2}, R: (-4, -3, 1)
C. D: (-3, -2, 1, 1, 2), R: (1, -3, -4)
D. D (-3, -2, 0, 1, 2), R (1, -3, -3, -3, -4)
Which is the answer?
Answer c would be the answer hope it helps
Step-by-step ex planation:
Please help me!
10.6 cm
13.5cm
Area=?
What is the value of the expression?
−5/12+7/34
-43/204
Step-by-step explanation:
−5/12 × 17/17 + 7/34 × 6/6 =
= −85/204 + 42/204
= −85 + 42/204
= −43/204
Find two numbers that have a sum of -2 and a product of -48 (please show work if possible)
Answer: -8 and 6
Step-by-step explanation:
factors of 48: 1,2,4,6,8,12,24,48
1 x 48
2 x 24
4 x 12
6 x 8
for a negative product, one of the factors must be negative and the other positive.
for two number to have a sum of -2, the greater number must be the negative number, and both numbers should have be two values apart (ex. 6 and 8, 3 and 5, 12 and 14, etc.). In this case, 8 would have to be negative whereas 6 will be left positive.
and then we check:
-8 x 6 = 48
-8 + 6 = -2
What is the answers to these.
Answer:
A）-28
B）-48
C）45
Solve the equation above for x
Answer:
2/3x=1-2
X=-1*3/2
X=-3/2
So is - 3/2
Find the CIRCUMFERENCE of a circle with the DIAMETER of 11 ft.
HELP PLS
Answer:
half of 11 is: 5.5
5.5 x 3.14 x 2 = 34.54
Will mark brainlest
Answer:
15)
Step-by-step explanation:
i think its that since im guessing that x5 is the length of each side and since triangles have 3 sides so i did 5 x 3 which equals 15
Eight figures are below. Which ones are polygons?
Type your answer as a list, separated by commas. For example, if you believe A, B, and C are polygons, type A, B, C.
Answer:
A,C,D is the answer
Answer:
C. is the answer................
somebody answer i need Help
Answer:
$5.00
Step-by-step explanation:
$5 because it occurs the most
Answer:
$5
Step-by-step explanation:
The mode is the price that appears the most often in a given list.
please help!!!
i need help with this
Answer:
Step-by-step explanation:
Combine like terms. Like terms have same variable with same power
a) (2xy + 4x) + (15xy - 5x) = 2xy + 15xy + 4x - 5x
= 17xy - x
b) (6a + 4b² - 3) + (3b² - 5) = 6a + 4b² + 3b² - 3 - 5
= 6a + 7b² - 8
c) (4x³ - 3x² +4x) + (8x² - 5x ) = 4x³ - 3x² + 8x² + 4x - 5x
= 4x³ + 5x² - x
d) (7b - 6a + 9y) - (12b + 5a - 2y) =
In subtraction, add the additive inverse of (12b + 5a - 2y)
additive inverse = - 12b - 5a + 2y
(7b - 6a + 9y) - (12b + 5a - 2y) = 7b - 6a + 9y -12b -5a + 2y
= 7b - 12b -6a - 5a + 9y + 2y
= -5b - 11a + 11y
e) (2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)
Additive inverse of 13x + 4x² + 5 - 6y = -13x + 4x² - 5 + 6y
(2x² + 7x - 2 + 9y) - (13x + 4x² + 5 - 6y)= 2x² + 7x - 2 + 9y -13x - 4x² -5 +6y
= 2x² - 4x² + 7x -13x -2 - 5 + 9y + 6y
= -2x² - 6x - 7 + 15y
2a+3b as a column vector
Answer:
Step-by-step explanation:
What is 9 006 in word
Answer: 9006 in word form is nine thousand six ,
I hope you find this helpful.
Answer: 9,006 in word-form is nine thousand six.
Explanation: To write a number in word form, simply type the number in word form like I did above. If a digit doesn't have a zero, don't type zero, just type the number like I did above. Notice how I didn't include the word "zero" in my answer.
Let me know of any questions or concerns.
*EXTRA PTS* answer these pls :)
Answer:
3)x=7,y=-2
Step-by-step explanation:
Answer:
3, (7, -2)
4, no solution
Step-by-step explanation:
Two six-sided number cubes are rolled at the same time. What is the probability that the result will have at least one two in it?
(A)7/36
(B)1/5
(C)11/36
(D)1/6
Answer:
1/6
Step-by-step explanation:
There are 12 numbers in total. There is a 2 on each cube so there are two possible chance. 2/12=1/6 2/2=1 and 12/2=6 therefore 2/12=1/6
The solution is, the probability that the result will have at least one two in it is, 1/6.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given that,
Two six-sided number cubes are rolled at the same time.
so, we get,
There are 12 numbers in total.
There is a 2 on each cube so there are two possible chance.
2/12=1/6
2/2=1
and 12/2=6
now, we have,
therefore 2/12=1/6.
Hence, The solution is, the probability that the result will have at least one two in it is, 1/6.
To learn more on probability click:
brainly.com/question/11234923
#SPJ3
