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3 years ago

A pool measuring 8 meters by 28 meters is surrounded by a path of uniform width,

Mathematics

2 answers:

Cerrena [4.2K]3 years ago

7 0

6 will be you answer

Sindrei [870]3 years ago

4 0

Answer:

Step-by-step explanation:

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Use the properties of exponents to rewrite y=3e^-0.6t in the form y=a(1+r)^t or y=a(1-r)^t. Round the value or r to the nearest

vesna_86 [32]

Answer:

$y=3(1-0.451)^t$

The value of r is 0.451

The percentage decrease is about 45.1%

Step-by-step explanation:

The given exponential function is $y=3e^{-0.6t}$

Using the exponent rule, $(x)^{ab}=(x^a)^b$

$y=3(e^{-0.6})^t$

Now the value of $e^{-0.6}=0.5488$

Thus, we can rewrite the function as

$y=3(0.5488)^t$

Therefore, the function in form $y=a(1-r)^t$

$y=3(1-0.451)^t$

The value of r is 0.451

The percentage decrease is about 0.451 ×100 = 45.1%

8 0

4 years ago

Solve the proportion 5/7=x/70 A. 10 B. 35 C. 98 D. 50

myrzilka [38]

Answer:

D. 50

Step-by-step explanation:

Multiply the top and bottom number by 10. The bottom number comes out to be 70 and the top number comes out to be 50.

7 0

3 years ago

Read 2 more answers

Melissa decided to divide her $42,000 of savings into three investments: a savings account paying 5% simple interest, a time dep

Marat540 [252]

Answer:

Amount in savings account = $24,000

amount put into time deposit account = $11,000

amount put into bond account = $7,000

Step-by-step explanation:

Let x be amount put into savings account, y be amount put into time deposit account and z be amount put into bond account.

Thus;

0.05x + 0.07y + 0.09z = 2600 - - (eq1)

Also,

x + y + z = 42,000 - - - (eq2)

Now,we are told she invested 6000 more in the savings account than the other 2 combined. Thus;

x = 6000 + y + z

So,

x - y - z = 6000 - - - (eq3)

Solving the 3 equations simultaneously gives;

x = $24,000 ; y = $11,000 ; z = $7,000

5 0

4 years ago

People in _______ careers are "creators." They are creative and enjoy expressing themselves through art, music, dance, writing,

attashe74 [19]

C is the answer because dance music are all types of art

5 0

4 years ago

Naomi is reading a book that has 420 pages she reads 35 pages each day how many days will naomi need to finish this book

posledela

Answer:

12 days

Step-by-step explanation:

420/35 to find amount of days to finish book

420/35 = 12

8 0

3 years ago