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Vedmedyk [2.9K]
3 years ago
13

A worker is using a polyurethane spray can to seal and protect several new

Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0

Answer:

7.5

Step-by-step explanation:

(15/5)-0.4-0.4-0.4-0.4-0.4-0.4-0.4-0.2=0

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A gold coin appreciated in value from $200.00 to $475.00 in 6 years. Find the yearly rate of appreciation. Show or explain all w
Travka [436]

Answer:

16%

Step-by-step explanation:

To solve this we are using the standard growth equation:

y=a(1+b)^x

Were

y is the final value after x years

a is the initial value

b is the growth factor (yearly rate of appreciation in our case) in decimal form

x is the time in years

We know from our problem that gold coin appreciated in value from $200.00 to $475.00 in 6 years, so y=475, a=200, and x=6.

Let's replace the values in our equation and solve for b:

y=a(1+b)^x

475=200(1+b)^6

\frac{475}{200} =(1+b)^6

2.375=(1+b)^6

\sqrt[6]{2.375} =\sqrt[6]{(1+b)^6}

1+b=\sqrt[6]{2.375}

b=\sqrt[6]{2.375}-1

b=0.155

which rounds to

b=0.16

Since our appreciation rate is in decimal form, we need to multiply it by 100% to express it as percentage:

0.16*100% = 16%

We can conclude that the yearly appreciation rate of our gold coin is approximately 16%

3 0
3 years ago
Please Help! What decimal is less than 0.4?
lisabon 2012 [21]

Answer:

For example, 0.4 is less than 0.7. Let us now compare 1.57 and 1.6.

Step-by-step explanation:

pls mark me as brainleast and folow me

6 0
3 years ago
If 9 students sharpen 18 pencils in 2 minutes, how many students will it take to sharpen 18 pencils in 1 minute?
Inessa [10]
Yes it's right C. 18
if 2m multiplied by 9 student the result is 18 , so 1m multiplied by how many students is resulting 18 ..... c.)18
5 0
3 years ago
QUiCK whoever gives me the right answer gets brainliest
8_murik_8 [283]

Answer:

speed of R miles per hour

miles depends on time

thats why it's miler per hour

7 0
3 years ago
PLEASE I NEED HELP 10 points (dont waste them) What is the area of this figure?
meriva

Answer:

1280

Step-by-step explanation:

I think it is 1280 because 20*16*8/2=1280. I am not 100% sure.

4 0
3 years ago
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