D) because the first equation*3-the second equation*;
the left side=0, the right side = 36
Answer:
since the unknown amount can buy 100 pencils
he bought 70 pencils
therefore $4.50 can buy 30 pencils
so 1 pencils cost $4.50 /30=0.15
20x+50=450
-50 -50
20x=400
Divide both sides by 20
X=20
The answer I got was 59.2
How I got it was that I counted how many years it was I got 16 years multiplied it by 3.7 and got 59.2
Hence, the amount of cholesterol in 6 ounces of lobster will be 128.58 milligrams
Step-by-step explanation:
Given
Cholesterol in 3.5 ounces = 75 mg
Cholesterol in 6 ounces =x= ?
This can be worked out by using proportions
It can be written as:

Hence, the amount of cholesterol in 6 ounces of lobster will be 128.58 milligrams
Keywords: Proportions, Conversion
Learn more about proportions at:
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