Equation 1: m = 8 + 2n Equation 2: 4m = 4 + 4n Step 1: −4(m) = −4(8 + 2n) 4m = 4 + 4n Step 2: −4m = −32 − 8n 4m = 4 + 4n Step 3: −4m + 4m = −32 − 8n + 4n Step 4: 0 = −32 − 4n Step 5: n = − 8 In which step did the student first make an error?Equation 1: m = 8 + 2n Equation 2: 4m = 4 + 4n Step 1: −4(m) = −4(8 + 2n) 4m = 4 + 4n Step 2: −4m = −32 − 8n 4m = 4 + 4n Step 3: −4m + 4m = −32 − 8n + 4n Step 4: 0 = −32 − 4n Step 5: n = − 8 In which step did the student first make an error? plz help
Solution 1
In step 3 the student first made an error to add a term 4.
What is a linear equation of two variables?
Linear equation of two variables is an equation where the highest degree is 1 and the number of variables is 2.
for example: 2x+2y=9
Here, the given two equations are
Equation 1: m = 8 + 2n
Equation 2: 4m = 4 + 4n
To solve these equation multiply -4 on both sides in equation 1
Step 1:
Equation -1*4 : −4(m) = −4(8 + 2n)
Equation -2: 4m = 4 + 4n
Step 2:
Equation -1*4 : −4m = −32 − 8n
Equation -2: 4m = 4 + 4n
Then add these two equations to eleminate the m terms.
Step 3:
Equation -1*4 + Equation -2 : −4m + 4m = −32 − 8n +4+ 4n
In the question term 4 is missing to add in right hand side in step 3
Step-4: 0=-4n-28
taking variable term on one side and constant term on one side and then dividing the coefficient of the variable on both sides.
Step-5: n=-7
Therefore in step 3 the student first made an error to add a term 4.
Learn more about the linear equation of two variables
here: brainly.com/question/13544663
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Solution 2
📚 Related Questions
Answer:
40
Step-by-step explanation:
So she has 12 cucumbers to make 3 jars of pickles.
She uses 4 cucumbers to make each jar. (Based on the equation 12➗3 =4)
Shawtyyyy better be using those pickles on burgers and not eating it raw.
So she has 10 jars right? Right, and you know she used 4 pickles per jar, so
we can get the answer by the equation of 10 x 4 = 40
Have a great day shawtayyyyyy!
Answer:
x = .
Step-by-step explanation:
Given : 4.1363636...
To find : Write as fraction .
Solution : We have given that
Let x = 4.1363636...
We can see number 36 ( 2 digit repeating ) so we will multiply it by 100
On multiplying both sides by 100
100x = 100 * 4.1363636...
100 x = 413 .63636 .....
We can write it in term of x
100 x = x + 409 .5
On subtracting both sides by x
100 - x = 409 .5
99 x = 409 .5
On dividing both sides by 99
x = .
x = .
x = .
On dividing both number by 9
x = .
Therefore, x = .
We have that the the Representation of 4.1363636 as fraction is
From the question we are told that:
4.1363636. is in decimal form
Fraction
This is the representation of a number in the format of a numerator and a denominator
Generally, the Representation of 4.1363636 as fraction is mathematically given by
Having defined fractions we have that
Therefore
The 4.1363636 as fraction is mathematically given by
in conclusion
The the Representation of 4.1363636 as fraction is
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4 x 8= 32
Eight sides = 32 feet
1 capsule = 60 ÷ 75 = $0.80
40 capsules = $0.80 x 40 = $32
Answer: $32
z=(x-μ)/σ
where:
μ-mean
σ-standard deviation
thus the z-score for the data set with mean 13 and standard deviation of 2.5 will be:
z=(10-13)/2.5
z=-1.2
y-y
——
x-x
The y with the greatest value goes first and then the lowest. Same thing with x.
Choose two coordinates from the table
Ex: (4,4) & (2,3)
4-3=1
——-
4-2=2
The slop is 1/2 or 0.5
There is a y intercept which is 2. You get 2 when you divide 1 by 2
So the equation would be
y=1/2x+2 or y=0.5x+2
Hope this helped
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