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Scorpion4ik [409]
3 years ago
5

57 1/2 as a decimal, Please help and Thanks

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
4 0
The answer is 57.5 because 57 represents a whole number and 1/2 equals .5 so 57.5.

People who answer the question will get a thank you!

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HELP PLSSSSSS!!!!!!!!!!!!!
larisa [96]

Answer:

.18

Step-by-step explanation:

180 grams = .18 kg

4 0
3 years ago
For a school play, Rico bought 3 adult tickets and 5 child tickets for $40. Sasha bought 1 adult ticket and 5 child tickets for
Serhud [2]

The cost of one adult ticket is $7.5 and one child ticket is $3.5

Julia will pay $48 for 5 adult tickets and 3 child tickets.

Step-by-step explanation:

Let,

Cost of one adult ticket = x

Cost of one child ticket = y

According to given statement;

3x+5y=40    Eqn 1

x+5y=25      Eqn 2

Subtracting Eqn 2 from Eqn 1

(3x+5y)-(x+5y)=40-25\\3x+5y-x-5y=15\\2x=15

Dividing both sides by 2

\frac{2x}{2}=\frac{15}{2}\\x=7.5

Putting x=2.5 in Eqn 1

3(7.5)+5y=40\\22.5+5y=40\\5y=40-22.5\\5y=17.5

Dividing both sides by 5

\frac{5y}{5}=\frac{17.5}{5}\\y=3.5

The cost of one adult ticket is $7.5 and one child ticket is $3.5

5 adult tickets = 5*7.5 = $37.5

3 child tickets = 3*3.5 = $10.5

Total = 37.5+10.5 =$48

Julia will pay $48 for 5 adult tickets and 3 child tickets.

Keywords: linear equation, subtraction

Learn more about subtraction at:

  • brainly.com/question/3071107
  • brainly.com/question/3126500

#LearnwithBrainly

8 0
3 years ago
After the mill in a small town closed down in 1970, the population of that town started decreasing according to the law of expon
wlad13 [49]

Answer:

P_o = \frac{143000}{e^{-20*0.01303024661}}=110193.69

And we can round this to the nearest up integer and we got 110194.  

Step-by-step explanation:

The natural growth and decay model is given by:

\frac{dP}{dt}=kP   (1)

Where P represent the population and t the time in years since 1970.

If we integrate both sides from equation (1) we got:

\int \frac{dP}{P} =\int kdt

ln|P| =kt +c

And if we apply exponentials on both sides we got:

P= e^{kt} e^k

And we can assume e^k = P_o

And we have this model:

P(t) = P_o e^{kt}

And for this case we want to find P_o

By 1990 we have t=20 years since 1970 and we have this equation:

143000 = P_o e^{20k}

And we can solve for P_o like this:

P_o = \frac{143000}{e^{20k}}   (1)

By 2019 we have 49 years since 1970 the equation is given by:

98000 = P_o e^{49k}   (2)

And replacing P_o from equation (1) we got:

98000=\frac{143000}{e^{20k}} e^{49k} =143000 e^{29k}  

We can divide both sides by 143000 we got:

\frac{98000}{143000} =0.685 = e^{29k}

And if we apply ln on both sides we got:

ln(0.685) = 29k

And then k =-0.01303024661[/tex]

And replacing into equation (1) we got:

P_o = \frac{143000}{e^{-20*0.01303024661}}=110193.69

And we can round this to the nearest up integer and we got 110194.  

7 0
3 years ago
A mobile phone carrier charges an extra fee if a customer uses more than 500 minutes each month. Tom has already used 230 minute
Gekata [30.6K]
The answer is x + 230 ≤ 500
4 0
3 years ago
Read 2 more answers
Need help understanding this please
castortr0y [4]

Answer:

G

Step-by-step explanation:

6 0
3 years ago
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