Answer: (4) d=112 (7) 2.75 or 2 3/4
explanation: pictured below
explanation: pictured below
Plz help asap I need this for my test student wrote and simplified an expression for the perimeter of the rectangle. (Using the
picture provided.)
perimeter.
Explain the mistake that was made in the simplified expression. Include the correct simplified expression in your explanation. Be sure to use math vocabulary words.
perimeter.
Explain the mistake that was made in the simplified expression. Include the correct simplified expression in your explanation. Be sure to use math vocabulary words.
1 answer:
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First, set the second equation with y as the isolated variable. To do this, subtract 4 from both sides to get
Now that you know the value of y, put that expression in for y in the first equation to get
Then, simplify by adding the x terms together to get
add 4 on both sides to isolate the x terms to get
then divide 6 from both sides to get
Using that x value, plug it into one of the equations as x to find y ( I will use y=3x-4)
x=1 and y=-1 is the answer
Now that you know the value of y, put that expression in for y in the first equation to get
Then, simplify by adding the x terms together to get
add 4 on both sides to isolate the x terms to get
then divide 6 from both sides to get
Using that x value, plug it into one of the equations as x to find y ( I will use y=3x-4)
x=1 and y=-1 is the answer
Answer:
Step-by-step explanation: