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larisa [96]
3 years ago
13

An advertisement in a magazine has a width of 80 mm and a height of 125 mm. Find

Mathematics
1 answer:
Alecsey [184]3 years ago
3 0

Answer:

perimeter calculator online

Step-by-step explanation:

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6 just 6

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6 is the greatezst and the all have the common factor of 6

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Heya ~
arsen [322]

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y = -3

Step-by-step explanation:

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3 years ago
What two numbers multiply to get 25 and add to -10
SOVA2 [1]
x;\ y-the\ numbers\\\\  \left\{\begin{array}{ccc}xy=25\\x+y=-10&\to x=-10-y\end{array}\right\\\\subtitute:\\(-10-y)y=25\\(-10)(y)-y(y)=25\\-10y-y^2=25\\-y^2-10y-25=0\ \ \ \ |change\ the\ signs\\y^2+10y+25=0\\y^2+5y+5y+25=0\\y(y+5)+5(y+5)=0\\(y+5)(y+5)=0\\(y+5)^2=0\iff y+5=0\to \boxed{y=-5}\\\\subtitute\ the\ value\ of\ y\ to\ the\ equation\ x=-10-y\\x=-10-(-5)\\x=-10+5\\\boxed{x=-5}\\\\Answer:\boxed{-5\ and\ -5}
7 0
4 years ago
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