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

QUESTION POSTED AT 06/12/2019 - 02:08 PM

QUESTION POSTED AT 06/12/2019 - 02:08 PM

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.

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.

The answer to your question is 29.75

ANSWERED AT 28/01/2020 - 01:01 AM

QUESTION POSTED AT 28/01/2020 - 01:01 AM

.681kg/1bag x 1lb/.454kg x 16oz/1lb = 24oz/1bag

ANSWERED AT 28/01/2020 - 12:41 AM

QUESTION POSTED AT 28/01/2020 - 12:41 AM

**Answer:**

13 boxes, in last box 10 kernels.

**Step-by-step explanation:**

There are 1450 kernels in a pound.

Each box hold 120 popped kernels

Let 'n' number of boxes have been filled with 1450 kernels and 120 popped kernels in each box.

Therefore, equation will be 120x = 1450

x =

= boxes

By this answer we understand that 12 boxes have been filled and part of the last box was filled.

Now number of popcorn kernels in 12 boxes = 12 × 120 = 1440

Remaining kernels for the last box = 1450 - 1440 = 10 kernels

Therefore, 13 boxes required and 13th box will have 10 kernels.

ANSWERED AT 28/01/2020 - 12:40 AM

QUESTION POSTED AT 28/01/2020 - 12:40 AM

Δ CBE is a right triangle.

∠EBC = 1/2 ∠ ABC = 1/2 · 116° = 58°

∠EBC + ∠ECB = 90°

∠ECB = 90° - 58° = 32°

∠DCB = 2 · 32° =**64°**

Answer: c ) 64

∠EBC = 1/2 ∠ ABC = 1/2 · 116° = 58°

∠EBC + ∠ECB = 90°

∠ECB = 90° - 58° = 32°

∠DCB = 2 · 32° =

Answer: c ) 64

ANSWERED AT 28/01/2020 - 12:13 AM

QUESTION POSTED AT 28/01/2020 - 12:13 AM

12200,16211,12050,11350,13325

Median =12050 (middle term)

Mean= (12200+16211+12050+11350+13325)/5

Mean= 13027.2

Mode= Not available in this case because mode is the most repeated value in set of data.in this data all the values are different

Median =12050 (middle term)

Mean= (12200+16211+12050+11350+13325)/5

Mean= 13027.2

Mode= Not available in this case because mode is the most repeated value in set of data.in this data all the values are different

ANSWERED AT 27/01/2020 - 11:38 PM

QUESTION POSTED AT 27/01/2020 - 11:38 PM

He has 9 pounds because a third of 9 pounds is 3 and 9 - 3 = 6

ANSWERED AT 27/01/2020 - 11:36 PM

QUESTION POSTED AT 27/01/2020 - 11:36 PM

His weight will be 165 pounds.

186- (3 x 7)= 165 pounds

186- (3 x 7)= 165 pounds

ANSWERED AT 27/01/2020 - 12:46 AM

QUESTION POSTED AT 27/01/2020 - 12:46 AM

Let n be the number of lbs of nuts.

Let r be the number of lbs of raisins.

9n + 3r = 60 * 5 = 300 .............(1)

n + r = 60

n = 60 - r ...............(2)

Plugging the expression for n in (2) into (1) we get:

9(60 - r) + 3r = 300

which expands to:

540 - 9r + 3r = 300 .............(3)

Simplifying and rearranging (3) we get:

-6r = -240

Therefore r, the weight of raisins = 40 lbs

and the weight of nuts is 60 - 40 = 20 lbs

Let r be the number of lbs of raisins.

9n + 3r = 60 * 5 = 300 .............(1)

n + r = 60

n = 60 - r ...............(2)

Plugging the expression for n in (2) into (1) we get:

9(60 - r) + 3r = 300

which expands to:

540 - 9r + 3r = 300 .............(3)

Simplifying and rearranging (3) we get:

-6r = -240

Therefore r, the weight of raisins = 40 lbs

and the weight of nuts is 60 - 40 = 20 lbs

ANSWERED AT 26/01/2020 - 11:52 PM

QUESTION POSTED AT 26/01/2020 - 11:52 PM

Let the fruit mixture of $5.7 per pound be for x pounds.

The nut of $14.55 per pound would then be: (10 -x).

Since the total blend of both = 10 pounds, selling for $9.24 per pound.

cost of 1st type + cost of second type = Total cost of blend mixture

5.7*x + 14.55*(10 - x) = 9.24*10

5.7x + 145.5 - 14.55x = 92.4

5.7x - 14.55x = 92.4 - 145.5

-8.85x = -53.1

x = -53.1/-8.85

x = 6

The other will be (10 -x) = 10 - 6 = 4.

She should use 6 lb of fruit mixture and 4 lb of nuts.

The nut of $14.55 per pound would then be: (10 -x).

Since the total blend of both = 10 pounds, selling for $9.24 per pound.

cost of 1st type + cost of second type = Total cost of blend mixture

5.7*x + 14.55*(10 - x) = 9.24*10

5.7x + 145.5 - 14.55x = 92.4

5.7x - 14.55x = 92.4 - 145.5

-8.85x = -53.1

x = -53.1/-8.85

x = 6

The other will be (10 -x) = 10 - 6 = 4.

She should use 6 lb of fruit mixture and 4 lb of nuts.

ANSWERED AT 26/01/2020 - 10:37 PM

QUESTION POSTED AT 26/01/2020 - 10:37 PM

1.5 inches. just do 9 divided by 6

ANSWERED AT 26/01/2020 - 10:33 PM

QUESTION POSTED AT 26/01/2020 - 10:33 PM

Formula for compound interest

Amount, A = P(1 + r)ⁿ

P= Principal = $200, r = rate = 6% = 0.06, n = number of years = 5

Amount, A = 200(1 + 0.06)⁵

= 200*(1.06)⁵

= 267.645..

So it would be worth ≈ $267.65 after 5 years of compounding.

Amount, A = P(1 + r)ⁿ

P= Principal = $200, r = rate = 6% = 0.06, n = number of years = 5

Amount, A = 200(1 + 0.06)⁵

= 200*(1.06)⁵

= 267.645..

So it would be worth ≈ $267.65 after 5 years of compounding.

ANSWERED AT 26/01/2020 - 09:53 PM

QUESTION POSTED AT 26/01/2020 - 09:53 PM

1 lb of cranberries at $4 per lb = $4.00

4 lbs of almonds at $5.00 per lb = $20.00

so we have 5 lbs of trail mix for $24.00

24.00/5 = $4.80 per lb

4 lbs of almonds at $5.00 per lb = $20.00

so we have 5 lbs of trail mix for $24.00

24.00/5 = $4.80 per lb

ANSWERED AT 26/01/2020 - 09:50 PM

QUESTION POSTED AT 26/01/2020 - 09:50 PM

C = 0.41(w - 5) + 10.80

ANSWERED AT 26/01/2020 - 12:51 PM

QUESTION POSTED AT 26/01/2020 - 12:51 PM

2160 inches into 12 pieces.

12 pieces = 2160 inches.

1 piece = 2160 / 12 = 180 inches.

But 12 inches = 1 foot, 3 feet = 1yard

3*12 = 36 inches = 1yard.

36 inches = 1yard.

180 inches = 180/36 = 5 yards.

Each piece was 5 yards long.

12 pieces = 2160 inches.

1 piece = 2160 / 12 = 180 inches.

But 12 inches = 1 foot, 3 feet = 1yard

3*12 = 36 inches = 1yard.

36 inches = 1yard.

180 inches = 180/36 = 5 yards.

Each piece was 5 yards long.

ANSWERED AT 26/01/2020 - 12:22 AM

QUESTION POSTED AT 26/01/2020 - 12:22 AM

**Answer: The function rule that gives the total cost is given by**

**Step-by-step explanation:**

Let the number of pounds of sugar be 'p'.

Let the total cost would be C(p).

Cost of each pound = $0.42

So, the function rule would be

**Hence, the function rule that gives the total cost is given by**

ANSWERED AT 26/01/2020 - 12:19 AM

QUESTION POSTED AT 26/01/2020 - 12:19 AM

If his son can lift three times as much weight, you'd have to multiply the amount Mr. Johnson can by three. If he can lift 14.5 pounds, that amount multiplied by three is 43.5 pounds.

ANSWERED AT 25/01/2020 - 08:40 PM

QUESTION POSTED AT 25/01/2020 - 08:40 PM

Y (gross pay) = 5t+200

ANSWERED AT 25/01/2020 - 03:51 PM

QUESTION POSTED AT 25/01/2020 - 03:51 PM

The minimum accepted mass is 18.25 - 0.36 = 17.89 oz

The maximum accepted mass is 18.25 + 0.36 = 18.61 oz

So the range of rejected mass is x < 17.89 U x > 18.61

The maximum accepted mass is 18.25 + 0.36 = 18.61 oz

So the range of rejected mass is x < 17.89 U x > 18.61

ANSWERED AT 25/01/2020 - 03:49 PM

QUESTION POSTED AT 25/01/2020 - 03:49 PM

The probability for this would be 2/200

ANSWERED AT 25/01/2020 - 03:46 PM

QUESTION POSTED AT 25/01/2020 - 03:46 PM

Okay let's write everything we know:

n = 1000

σ = 15

μ = 150

Now let's draw the normal distribution (look at picture all the way on the bottom of this post)

We can observe that 165 and 135 are both 15 away from 150. That means that 165 and 135 are one standard deviation from the mean. You should be familiar with**68–95–99.7% rule**. It tells us that the probability of someone being between one standard deviation or in our case **between 135<x<165 pounds is 68%**.

For two standard deviation is 95%, and for three is 99.7%.

Now we know that 68% of people are between 135<x<165.**That means that 32% of a 1000 men are either more than 165 pounds or less than 135 pounds.**

So 320 men weigh more than 165 or less than 135.

We divide that (we can because normal distribution is even) and get

**About 160 men that weigh more than 165**

**About 160 men that weigh less than 135**

More accurate would be 158.66 men for both, because we used 68% instead of more correct 68.27%

There's a site where you can test your answers on an online calculator:

http://homepage.stat.uiowa.edu/~mbognar/applets/normal.html

n = 1000

σ = 15

μ = 150

Now let's draw the normal distribution (look at picture all the way on the bottom of this post)

We can observe that 165 and 135 are both 15 away from 150. That means that 165 and 135 are one standard deviation from the mean. You should be familiar with

For two standard deviation is 95%, and for three is 99.7%.

Now we know that 68% of people are between 135<x<165.

So 320 men weigh more than 165 or less than 135.

We divide that (we can because normal distribution is even) and get

More accurate would be 158.66 men for both, because we used 68% instead of more correct 68.27%

There's a site where you can test your answers on an online calculator:

http://homepage.stat.uiowa.edu/~mbognar/applets/normal.html

ANSWERED AT 25/01/2020 - 03:29 PM

QUESTION POSTED AT 25/01/2020 - 03:29 PM

**Answer:**

5

**Step-by-step explanation:**

apex

ANSWERED AT 25/01/2020 - 03:03 PM

QUESTION POSTED AT 25/01/2020 - 03:03 PM

3.2x + 0.8y < = 50.....that would be answer B

ANSWERED AT 25/01/2020 - 03:00 PM

QUESTION POSTED AT 25/01/2020 - 03:00 PM

**Step-by-step explanation:** To convert pounds into ounces, we need to start with a conversion factor for pounds and ounces which is 16 ounces = 1 pound.

Next, since we are going from a larger unit "pounds" to a smaller unit "ounces" we will multiply the pounds by our conversion factor.

Finally, our product will be our answer.

Read more on Brainly.com - brainly.com/question/6465435#readmore

ANSWERED AT 25/01/2020 - 02:51 PM

QUESTION POSTED AT 25/01/2020 - 02:51 PM

Raisins are sold for $2 a pound.

If you want to figure out how much 4 pounds of raisins would cost, you should multiply the cost per pound ($2) by the number of pounds that you are purchasing (4).

$2 * 4 = $8

Therefore, 4 pounds of raisins would cost B. $8.

If you want to figure out how much 4 pounds of raisins would cost, you should multiply the cost per pound ($2) by the number of pounds that you are purchasing (4).

$2 * 4 = $8

Therefore, 4 pounds of raisins would cost B. $8.

ANSWERED AT 25/01/2020 - 02:42 PM

QUESTION POSTED AT 25/01/2020 - 02:42 PM

You simply divide $14.70 by 70, because you want to find out how much each foot COSTS, so the correct answer is A. $0.21 per foot

ANSWERED AT 25/01/2020 - 02:42 PM

QUESTION POSTED AT 25/01/2020 - 02:42 PM

**Answer:**

**9 whole sandwiches can be made **

**Step-by-step explanation:**

As we know 1 pound = 16 ounces

Therefore, 3 pounds = 16 × 3 = 48 ounces

There are 48 ounces (3 pounds) of turkey.

In each sandwich turkey is used = 5 ounces

48 ounces turkey is used = 48 ÷ 5 = 9.6 ≈ 9

**9 whole sandwiches can be made **with 3 pounds of turkey.

ANSWERED AT 25/01/2020 - 02:16 PM

QUESTION POSTED AT 25/01/2020 - 02:16 PM

**Answer:**

**Option A is correct**

**Step-by-step explanation:**

Direct variation says that:

then;

**the equation is in the form of**

, where k is the constant of variation

**As per the statement:**

The number of milligrams of a certain medicine a veterinarian gives to a dog varies directly with the weight of the dog.

Here, **w** represents the weight and **d** represents the dosage

then ,by definition of direct variation we have;

.....[1]

**It is also given that if the veterinarian gives a 30-pound dog 3/5 milligram of the medicine**

⇒w = 30 pound and d = 3/5 milligram

Substitute in [1] we have;

**Multiply both sides by 5 we have;**

**Divide both sides by 150 we have;**

Simplify:

⇒

**therefore, equation relates the weight, w, and the dosage, d is:**

ANSWERED AT 24/01/2020 - 10:56 PM

QUESTION POSTED AT 24/01/2020 - 10:56 PM

The resultant force is the sum of all forces positioned at different directions and placed in a specific angle. In this case, we can take the short way to answer this problem. we use the calculator and shift the mode to complex to add 100<50 and 50<160. the answer is 95.29<79.54. The magnitude is 95.29 pounds and the angle is 79.54°.

ANSWERED AT 24/01/2020 - 10:51 PM

QUESTION POSTED AT 24/01/2020 - 10:51 PM

ANSWERED AT 24/01/2020 - 10:50 PM

QUESTION POSTED AT 24/01/2020 - 10:50 PM

First, how many pounds are equal to 1 ton? 2000

Then, $0.70 x 2000 pounds

So, the cost to move is $1,400

Yep. It's that simple. :)

ANSWERED AT 24/01/2020 - 06:03 PM

QUESTION POSTED AT 24/01/2020 - 06:03 PM