Answer:
width = (21 - 2n) ÷ 2 or 21/2 - n
Step-by-step explanation:
To find Width
let's say width is x
so 2x + 2n = 21
take away 2n from both sides
then 2x = 21 - 2n
Divide both sides by 2 to get x on its own
x = 21 - 2n /2
therefore the width of the rectangle is 21 - 2n /2
Answer:
B B
Step-by-step explanation:
its B that the correct answer
Answer:
Step-by-step explanation:
Answer:
fghfhghh
Step-by-step explanation:
hjhmnmjhhm
Answer:
10
Step-by-step explanation: