If
x + 2y = 1
x-2y = 13'
then y =
Answers
On solving the given set of equations, we get the value of y = 3.
What do we mean by simultaneous equations?
A set of equations having two or more variables whose values can satisfy all the equations in the set at the same time, with the number of variables equal to or fewer than the number of equations in the set is called simultaneous equations.
How do we solve the given question?
We are given a set of simultaneous equations in x and y,
x + 2y = 1
x - 2y = 13.
We are asked to find the value of y.
Let the equations
x + 2y = 1... (i)
x 2y = 13 ... (ii).
To solve for y, we subtract (i) from (ii) to get,
∴ We get -4y = 12.
Dividing both sides of this equation by -4, we get,
(-4y)/(-4) = 12/(-4)
or, y = -3.
∴ On solving the given set of the equation we get the value of y = 3.
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Answer:
y= -3
Step-by-step explanation:
adding both the equation we get x= 7
and then put value of x in any one equation u will get y as -3
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The general term for the sequence 3/4, 6/5, 9/6, 12/7, 15/8 is?
Answers
Answer:
The answer is
3/4
Step-by-step explanation:
-2 1/4÷(-3 1/3)
First convert the mixed number to an improper fraction
That's
And
So we have
Simplify
Change the division sign to multiplication sign and reverse the second number
That's
Simplify
We have the final answer as
Hope this helps you
Answer:
27/40
Step-by-step explanation:
-2 1/4÷(-3 1/3)
first convert into improper fraction
-9/4 ÷ -10/3
Change the division sign by multiplying by the inverse of -10/3
the inverse of -10/3 = -3/10
-9/4 × -3/10 = (-9×-3)/(4×10)
= 27/40
27/40 is a proper fraction
Therefore, the simplified form of -2 1/4÷(-3 1/3) = 27/40
Answers
Answer:
Step-by-step explanation:
204/6=34
Explanation:
1. since 1 point is $6, then we can follow up by saying 2 points is $12 and 3 points is $18 etc. therefore you can divide total money by 6 to find points.
Answers
P=2L=2W
70=2L+2(3/4L)
70=2L+6L/4
70=2L+1.5L
70=3.5L
L=70/3.5
L=20 FT. ANS. FOR THE LENGTH.
W=4/4*20=15 ANS. FOR THE WIDTH
i think.
8w + 2w = 70
10w = 70
W= 7 m
Again, you just have to learn to make the equations. :)
A.22 – 14x
B.22 – 6x
C.22 + 6x
D.11x – 5x
Answers
Reason Being is because you would combine (4x) and (-10x) which would give you -6x.
After combining those you would combine (7) and (15) which would give you 22.
Therefore, your answer is (22-6x)
Answers
Answer:
x = 2
Step-by-step explanation:
x SR20 = 7 SR5 - SR45
x = (7 SR5 - SR45) / SR20
x = 2