4900÷7= slove without a calculator.
1 answer:
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Answer:
value of a in terms of b and c is:
Option D is correct.
Step-by-step explanation:
We are given:
We need to find a in terms of b and c
We have:
Put value of d
So, value of a in terms of b and c is:
Option D is correct.
Answer:
The width of the piece is 11 inches
Step-by-step explanation:
Let
x ----> the length of the rectangular piece of aluminum in inches
y ----> the width of the rectangular piece of aluminum in inches
we know that
The perimeter of the rectangular piece of aluminum is equal to
we have
so
simplify
----> equation A
----> equation B
Solve the system by substitution
substitute equation B in equation A
solve for y
therefore
The width of the piece is 11 inches