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26.02.2020 •
Mathematics
Alex is putting a border around his bedroom. The bedroom measures 15 feet by 12 feet. Write an expression that can be used to find the total amount of border needed for his bedroom. Then solve the expression.
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Ответ:
15* 12 = 180 feet
Step-by-step explanation:
Ответ:
Expression: 2(15 +12)
Solved Expression: 54 ft
Step-by-step explanation:
You don't multiply 15 x 12 because that would be area, but you're looking for perimeter because the border goes AROUND his room. The answer is 54 feet if you follow the formula for perimeter which is 2(l + w).
Ответ:
d (last choice)
Step-by-step explanation: