Charlie solved an equation, as shown below:Step 1: 5x = 30
Step 2: x = 30 – 5
Step 3: x = 25
Part A: Is Charlie's solution correct or incorrect? If the solution is incorrect, explain why it is incorrect and show the correct steps to solve the equation. (6 points)
Part B: How many solutions will this equation have? (4 points)
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Answers
Answer: A) Yes, his solution is incorrect.
B) The given equation has 1 solution.
Step-by-step explanation:
A) Here, the given expression is,
Thus, the steps of solving the given expression are as follow,
Step 1:
Ste 2 :
Step 3 :
Hence, by the above explanation,
It is clear that the given steps of the solution are incorrect.
B) Since, x has only one value which is 6,
Hence, the given expression has only one solution.
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Answers
m=slope
perpendicular lines have slopes that multiply to -1
the line we have is y=-4/7x+5
therefor
if the slope we are looking for is m
(-4/7)m=-1
times -7/4 both sides
m=7/4
we are looking for
y=7/4x+b
last one is answer