A suitable calculator can row-reduce the augmented matrix.
first number: 3
second number: 1
third number: 8
Answer:
10
Step-by-step explanation:
I assume it's a rectangle, therefore:
P = 50
a = 15 ft
b = ?
P = 2a + 2b
50 = 2 * 15 + 2b
50 = 30 + 2b
2b = 50 - 30
2b = 20
b = 10
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The problem seems confusing is it supposed to say y=?
