5x² + 25x = 0
5x(x) + 5x(5) = 0
5x(x + 5) = 0
5 5
x(x + 5) = 0
x = 0 or x + 5 = 0
- 5 - 5
x = -5
75%= 3/4
120*4=480
480/3=160
160/10=16
16*4=64
Hope you understand it
The answer: 30 .
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Explanation:
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10 + (x/6 ) = 5 ; solve for "x" ;
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Subtract "10" from each side ;
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10 + (x/6 ) - 10 = 5 - 10 ;
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to get:
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x / 6 = -5 ;
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Now, multiply EACH side of the equation by "6" ; to isolate "x" on one side of the equation; and to solve for "x" ;
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(x/6) *6 = -5 * (6) ;
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To get: x = 30 .
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which is Marcella's age
of 63 is 21 ⇔ 63÷3=21
which is Justins age
Marcella's age⇒63
Justin's age⇒23
Aimee's age⇒42
Note: I was trying to find a better way to do this but I couldn't figure it out in the top of my head so I'm sorry for the long response