What is £390 shared as 5:8 ratio
Answers
Total parts
5+8 = 13
If we want to get a single part, it has to be divided by 13.
390 / 13 = 30
therefore,
5 : 8
1*5 : 1*8
30*5 : 30*8
150 : 240
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y=-2x-4
solve by substitution
Answers
Answer:
x = − 3
Step-by-step explanation:
Let's solve your equation step-by-step.
− 2x − 4 = x + 5
Step 1: Subtract x from both sides.
− 2x − 4 − x = x + 5 − x
− 3x − 4 = 5
Step 2: Add 4 to both sides.
− 3x − 4 + 4 = 5 + 4
−3x = 9
Step 3: Divide both sides by -3.
−3x / −3 = 9 / −3
x = − 3
Hope it helps,
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Thank you
y = 4x + 6
What is the solution to the system of equations?
(−3, 18)
(−3, −18)
(3, −18)
(3, 18)
Answers
For a system of equations to have no real solution, the lines of the equations must be parallel to each other. The solution of the system of equation y = 5x + 3 and y = 4x + 6 is (3,18).
What is a System of equations?
Inconsistent System
For a system of equations to have no real solution, the lines of the equations must be parallel to each other.
Consistent System
1. Dependent Consistent System
For a system of the equation to be a Dependent Consistent System, the system must have multiple solutions for which the lines of the equation must be coinciding.
2. Independent Consistent System
For a system of the equation to be an Independent Consistent System, the system must have one unique solution for which the lines of the equation must intersect at a particular.
The solution of the system of equations can be done as shown below, therefore,
Equation 1: y = 5x + 3
Equation 2: y = 4x + 6
Substitute the value of y from the first equation in the second equation, therefore,
y = 4x + 6
5x + 3 = 4x + 6
5x - 4x = 6 - 3
x = 3
Substitute the value of x in any one of the equation,
y = 5(3) + 3
y = 15 + 3
y = 18
Hence, the solution of the system of equation y = 5x + 3 and y = 4x + 6 is (3,18).
Learn more about System of equation:
#SPJ2
y=5x+3
y= 4x+6
Let's solve y=5x+3 for y
Substitute 5x+3 for y in y=4x+6
y=4x+6
5x+3=4x+6
Add -4x
5x+3-4x=4x+6-4x
x+3=6
Add -3
x+3-3=6-3
x=3
Now substitute 3 for x in y=5x+3
y=5x+3
y= (5)(3)+3
y= 15+3
y= 18
Answer D
(3,18)
I hope that's help:)
Answers
83×93 is not the prime factorization of 7,719 because 93 is not a prime number:
93 = 3×31
Therefore the prime factorization of 7,719 is 83×3×31.
Answer:
Because it isn't a prime number
Answers
3 = c/5 + 2
3 = c/7
21/7 = c/7
21 = c
3 - 2 = c/5
1 = c/5....multiply both sides by 5, causing the 5 on the right to cancel
5 = c
Answers
3x=4-2y
Answer:
(1, 4), (2, 6), and (3, 7)
B.
(1, 4), (2, 8), and (3, 12)
C.
(3, 7), (5, 9), and (7, 10)
D.
(3, 7), (5, 9), and (7, 11)
Answers
Answer:
d
Step-by-step explanation: