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igor_vitrenko [27]

2 years ago

12

Which two expressions are equivalent?

1 answer:

Vikki [24]2 years ago

8 0

We need a pic to answer the question

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A group of 18 people ordered soup and sandwiches for lunch. Each person in the group had either one soup or one sandwich. The sa

Black_prince [1.1K]

X - the number of sandwiches
y - the number of soups

$x+y=18 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-4.5) \\
7.75x+4.5y=113.5 \\ \\
-4.5x-4.5y=-81 \\
\underline{7.75x+4.5y=113.5} \\
7.75x-4.5x=113.5-81 \\
3.25x=32.5 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\div 3.25 \\
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2 years ago

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PLSS HELPP 25 POINTS AND BRAILIEST

Salsk061 [2.6K]

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$\Large \boxed{\sf 136 \ m^2}$

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Find the LCM of 52 and 39

qwelly [4]

Lcm of 52 and 39 is 156

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