One gram of protein contains 4 calories. One gram of fat contains 9 calories. A snack has 80 calories from x grams of protein an
2 answers:
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Answer:
Option D. 8 units
Step-by-step explanation:
step 1
Find the area of rectangle
The area of rectangle is
step 2
Find the length side of the square with the same area of rectangle
The area of a square is
where
b is the length side of the square
we have
substitute
take the square root both sides
therefore
The length side of the square is 8 units