L = W + 12
P = 7W = 2L + 2W
7W = 2W + 24 + 2W
3W = 24
W = 8
L = 20
Answer:
1/2
Step-by-step explanation:
- Sherry first took the multiplication instead of taking the sum of 16 and 9 first.
- The right expression is: 2* (16+9)
Step-by-step explanation:
Sherry's expression was:
(2*16)+9
Her expression was wrong because it is mentioned that twice the sum of 16 and 9 which means that first the sum has to be calculated then the sum will be multiplied by two.
So,
The right expression is: 2* (16+9)
Keywords: Word problems
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Answer:
c
Step-by-step explanation: