Which algebraic expression is equivalent to 7(3x + 12) + 12x - 16
1 answer:
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Answer:
it takes 2/3 gallons to paint each square yard of wall.
You know that Tyler painted 9/2 square yards area with 3 gallons of paint and want to know many gallons of paint does it take to paint each square yard of wall.
Then 9/2 square yards - 3 gallons
1 square yards - x gallons,
mathematically this is proportion: (in the picture)
Answer:
Step-by-step explanation:
If the rectangles are similar to one another, then their sides exist in proportion to one another. Set up a proportion with the larger rectangle on top and the smaller rectangle on bottom:
Cross multiply to get
10x = 77 so
x = 7.7