Posted by **AK** on Wednesday, July 16, 2008 at 3:32pm.

A certain alloy contains 5.25% copper.

How much copper is there in a piece weighing 200 pound?

A)1.50 pounds

B)105 poounds

C)10.5 pounds

D)1050 pounds

i think its D am i right

- Math -
**DrBob222**, Wednesday, July 16, 2008 at 3:36pm
Can D really be right? The original piece weighs 200 pounds. How can 5.25% of that be more than you started with?

- Math -
**Nickel**, Wednesday, July 16, 2008 at 3:49pm
I see what you're thinking, you wanted to multiply 5.25 * 200, which would give you 1050. But that would be wrong.

What you need to realize is that the 5.25 is a percentage, so instead of multiplying 200 * 5.25, you need to multiply 200 * 0.0525 and you will get your answer.

- Math -
**DrBob222**, Wednesday, July 16, 2008 at 4:05pm
Nickel is correct.

## Answer this Question

## Related Questions

- math - An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is ...
- Geometry - An alloy of copper is 10% copper and weighs 25 pounds. A second alloy...
- algebra - A pound of tin is worth $2 more than a pound of copper. Three pounds ...
- MATH - 7. Tina lost 3 pounds on the first week of her diet. She gained a pound ...
- Chemistry - 2. Suppose that the amount of algae in a pond doubles every 4 hours...
- math - david gained 14 pounds over the winter. he went on a diet and lost 26 ...
- Trigonometry - A cable that can withstand 2,250 pounds is used to pull cargo up ...
- Math - Okay i think i understand this wrod problem but i need help this is the ...
- Math - A U.S. nickel contains 3 ounces of copper for every ounce of nickel. How ...
- math - mario took inventory of fish food in his store. there were 1 5/8 pounds ...