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djverab [1.8K]
3 years ago
15

50 points help me got stuck with this one

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
3 0

Answer:2,4,8

Step-by-step explanation:

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Can y’all help me on question 5?!
OleMash [197]

Answer:

6 : 45 = 2 : 15

Step-by-step explanation:

2/15 or 2:15

7 0
3 years ago
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Suppose a population is growing by 8% each year. How many years will it take the population to double?
Doss [256]

ANSWER

\text{9 years}

EXPLANATION

We want to find the number of years that it will take the population to double.

To do this, we have to apply the exponential growth function:

y=a(1+r)^t

where y = final value

a = initial value

r = rate of growth

t = time (in years)

For the population to double, it means that the final value must be 2 times the initial value:

y=2a

Substitute the given values into the function above:

\begin{gathered} 2a=a(1+\frac{8}{100})^t \\ \frac{2a}{a}=(1+0.08)^t=1.08^t \\ 2=1.08^t \end{gathered}

To solve further, convert the function from an exponential function to a logarithmic function as follows:

\log _{1.08}2=t

Solve for t:

\begin{gathered} \frac{\log _{10}2}{\log _{10}1.08}=t \\ \Rightarrow t=9\text{ years} \end{gathered}

It will take 9 years for the population to double.

4 0
1 year ago
Brielle and her family went to our diner. They got ice cream cone, a brownie, and a cookie. How much did they spend on dessert?
Svetlanka [38]

Answer:

$6.83

Step-by-step explanation:

A brownie costs $3.45, an ice cream costs $2.43, and a cookie costs $0.95. So $3.45 + $2.43 + $0.95 = $6.83.  If you need to know the change if they paid with $10.00 also  . . . That would be $10.00 - $6.83 = $3.17 change.

7 0
3 years ago
8 is 25% of what number?
VLD [36.1K]

Answer:

32

Step-by-step explanation:

25% is the same as 1/4

8 times 4 is 32 so 8 is 25% of 32

8 0
3 years ago
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Pls help i need help with this question
Lapatulllka [165]

Answer:

slope = 1

Step-by-step explanation:

\frac{y_{2} -y_{1} }{x_{2}- x_{1}  }

(2,4) (0,2)

\frac{2-4}{0-2} = \frac{-2}{-2} = 1


3 0
3 years ago
Read 2 more answers
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