-8x + 4y =24
-7x + 7y = 28
Answers
I hope it will help you!!!!!
Related Questions
Old Answers got deleted Answer Seriously.The 8th graders are taking a field trip to Washington, D.C. In addition to the 38 boys and 54 girls attending, there are also 16 adult chaperons. Write each ratio in the simplest form.A. Boys to GirlsB. Chaperones to StudentsC. Girls To Total Number Of People Attending
Which shows how the distributive propertycan be used to multiply 438 and 21?(4 x 21) (3 x 21) (8 x 21)
Transformand 20 de tone in kilograme se obtine .... kgCate kg?
Kevin says that lines p and m will eventually intersect.Is Kevin correct?
b. 5*5*5*5*5*5*5
c. 7*7*7*7*7
d.7*5*7*5
* means multiplication
Answers
Answer:
B
Step-by-step explanation:
YOU DO it seven times
y=\frac{1}{4}x-3y = 1 4 x − 3
Group of answer choices
please help me!
A) (5,0.5)
B) (8,-1)
C) (-1,8)
D) (0.5,5)
What is the solution to the system of equations?
y=2x-3.5y = 2 x − 3.5
x-2y=-14x − 2 y = − 14
Group of answer choices
(10.5, 7)
(-7, 3.5)
(7, 10.5)
(3.5, -7)
Answers
Answer:
- (x, y) = (8, -1)
- (x, y) = (7, 10.5)
Step-by-step explanation:
1. You can use the expression for y to substitute into the first equation:
2x +4(1/4x -3) = 12
2x +x -12 = 12 . . . . . . eliminate parentheses
3x = 24 . . . . . . . . . . . add 12; next divide by 3
x = 8 . . . . . matches choice C
__
2. You can use the expression for y to substitute into the second equation:
x -2(2x -3.5) = -14
-3x +7 = -14 . . . . . . eliminate parentheses
21 = 3x . . . . . . . . . . add 3x+14; next divide by 3
7 = x . . . . . matches the third choice
_____
When the answer choices are sufficiently different, you only need to find one value to determine which is the correct choice. (If you want to check your work further, you can substitute the other answer value into the two equations to see if it works.)
A.30 cm² B.70 cm² C.125 cm² D.150 cm²
Answers
= 6S^2
= 6(5^2)
= 6(25)
= 150
Answers
It these triangles are similar, then the sides of the triangles are in proportion:
cross multiply
use distributive property
subtract 10y from both sides
divide both sides by 5
cross multiply
divide both sides by 8
Answers
ten is raised to the second power
A random sample (Sample 2) of grades 11 and 12 showed scores of: 57, 62, 86, 82, 74, 78, 96, 90, 97, and 83.
What is the median of Sample 1?
What is the median of Sample 2?
Answers
The median of Sample 1 is 83.5 and median of Sample 2 is 82.5.
What is Statistics?
Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
A random sample (Sample 1) from grades 9 and 10 showed scores of:
84, 50, 99, 83, 50, 78, 88, 85, 77, and 96.
Ascending order: 50, 50, 77, 78, 83, 84, 85, 88, 96, 99
The sample has an even number of scores, so the median is the average of the two middle scores:
(83 + 84)/2
= 83.5
Therefore, the median of Sample 1 is 83.5.
For sample 2, the data set is 57, 62, 86, 82, 74, 78, 96, 90, 97, and 83.
Ascending order of scores: 57, 62, 74, 78, 82, 83, 86, 90, 96, 97
The sample has an even number of scores,
so the median is the average of the two middle scores: (82 + 83)/2
= 82.5
Hence, the median of Sample 1 is 83.5 and median of Sample 2 is 82.5.
To learn more on Statistics click:
#SPJ3
Answer:
?
Step-by-step explanation: