A certain alloy contains 5.25% copper. How much copper is there in a piece weighing 200 pounds?

Mathematics

2 answers:

AveGali [126]3 years ago

5 0

The 200-pound piece of alloy contains 10 and a 1/2 pounds of copper.

Ronch [10]3 years ago

3 0

0.0525
The percent sign means divide. So you just move the decimal over two places to the left.To find the percentage, we multiply this 'decimal' form of the percent by 200.
0.0525*200 = 10.5
The 200-pound piece of alloy contains 10-1/2 pounds of copper.

You might be interested in

Tony is 5.75 feet tall. Late one afternoon, his shadow was 8 feet long. At the same time, the shadow of a nearby tree was 32 fee

dangina [55]

the height of the tree is 23 feet .

Step-by-step explanation:

Here we have , Tony is 5.75 feet tall. Late one afternoon, his shadow was 8 feet long. At the same time, the shadow of a nearby tree was 32 feet long. We need to find Find the height of the tree. Let's find out:

According to question , Tony is 5.75 feet tall. Late one afternoon, his shadow was 8 feet long . Let the angle made between Tony height and his shadow be x . Now , At the same time, the shadow of a nearby tree was 32 feet long. Since the tree is nearby so tree will subtend equal angle of x. Let height of tree be y , So

⇒ $Tanx=\frac{y}{32}$