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astraxan [27]
3 years ago
9

Consider the rates 4/5 miles in 8 minutes and 4 minutes to travel 2/5 mile

Mathematics
1 answer:
Anna007 [38]3 years ago
8 0

Answer:

960

Step-by-step explanation:

I'm not sure exactly what's the question, but here's what I found. Lets first put it in our own words.

Consider the speed 4/5 miles in 12 minutes to travel 2/8.

8 + 4 = 12, so you can replace that with 12 minutes.

Now, you can absolutely guess your question.

Time = 12 minutes.

Distance = x (Let x be distance)

Speed = 4/5.

Now, you find distance.

Distance Formula: You can use the equivalent formula d = st which means distance equals rate times time.

So 4/5 × 12, is 9.6.

In fraction, if you have 1 numbers after the decimal point, multiply both numerator and denominator by 10. So 9.6 = (9.6 × 10) × 10 = 960.

Here is a pattern I found

2/5 divided by 4 is 1/10

4/5 divided by 8 is 1/10

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In 1981, the Australian humpback whale population was 350 and has increased at a rate of 14% each year since then.)
dimulka [17.4K]

Answer:

In 1981, the Australian humpback whale population was 350

Po = Initial population = 350

rate of increase = 14% annually

P(t) = Po*(1.14)^t

P(t) = 350*(1.14)^t

Where

t = number of years that have passed since 1981

Year 2000

2000 - 1981 = 19 years

P(19) = 350*(1.14)^19

P(19) = 350*12.055

P(19) = 4219.49

P(19) ≈ 4219

Year 2018

2018 - 1981 = 37 years

P(37) = 350*(1.14)^37

P(37) = 350*127.4909

P(37) = 44621.84

P(37) ≈ 44622

There would be about  44622  humpback whales in the year 2018

5 0
3 years ago
7) A photo booth charges a $500 fee for two hours at a party, plus $50 per additional hour. Cindy doesn't want to spend more tha
jeyben [28]

Since the photo booth charges a $500 fee for two hours at the party and an additional 50 dollars per hour, we have:

50x+500=C

Where x is the hours stayed and C is the total cost. Since Cindy doesn't want to spend more than 700 dollars, we have:

50x+500=700 \implies\\ 50x=200\implies\\ x=4

So she spent an additional 4 hours on the rental.

3 0
3 years ago
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Write a numerical expression for the phrase and simplify the expression. The sum of -6 and -10 increased by 11.
BlackZzzverrR [31]

Answer:

-116

Step-by-step explanation:

5 0
3 years ago
Pls help me i will make u a brainlest oh and its about unit rates
Digiron [165]

/Answer:

4

Step-by-step explanation:

24 / 6 = 4

6 0
3 years ago
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Solve for c (c - 2h) ^ 2 = d<br> Answer now please its 100
WITCHER [35]
<h2>Hello!</h2>

\boxed{\boxed{\bf THEME:\:EQUATIONS}}

Answer:

It\:\:is\:\:c=h=-\frac{\sqrt{d}-c}{2},\:c=h=-\frac{-\sqrt{d}-c}{2}

Step-by-step explanation:

c=\left(c\:-\:2h\right)^2=d

c=c-2h=\sqrt{d}         c=c-2h=-\sqrt{d}

c=-2h=\sqrt{d}-c      c=-2h=-\sqrt{d}-c

c=h=-\frac{\sqrt{d}-c}{2}          c=h=-\frac{-\sqrt{d}-c}{2}

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\heartsuit Greetings

Sincerely: <em><u>anapaulacbellido</u></em>

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