Amelia is 3 years younger than Etta. The product of their ages is 40. How old is Amelia?
1 answer:
Answer:
Amelia is <u>5 years</u> old
Let x be Amelia and y by Etta.
[] Amelia is 3 years younger than Etta.
x = y - 3
[] The product of their ages is 40.
x * y = 40
We can use a system of equations to solve
[] The system
a = e - 3
a * e = 40
[] Graphing
-> See attached
[] The answer is 5
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Answer:
12.808 meter is the length should Rickey use for the mural.
Step-by-step explanation:
Area of the mural = A =
Length of the mural = l
Width of the mural = w
l = 5 + 2w
Area of the rectangle = l × w
Solving above equation with the help of Completing squares method:
w = 3.904 m (accept)
w = -6.404 m (reject)
l = (5 + 2w)m = 5 + 2 × (3.904) m= 12.808 m
12.808 meter is the length should Rickey use for the mural.