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Rina8888 [55]
3 years ago
13

I will mark you brainlist!

Mathematics
1 answer:
valina [46]3 years ago
4 0

Answer:

72 people.

Step-by-step explanation:

4 out of 10 is 40%. Now apply that to 180. 40% of 180 is 72. Hope this helps.

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Copper has a density of 8.9 g/cm A copper necklace has a volume of 396 cm”.
Leviafan [203]

Answer:

3524.4 g

Step-by-step explanation:

  • Use formula: Density = Mass/Volume
  • Mass= Density * Volume

7 0
3 years ago
Mallorie has $3 in her wallet.If this is 10% of her monthly allowance, What is her monthly allowance?
Mekhanik [1.2K]
Her monthly allowance is $30! hope this helped

8 0
3 years ago
Read 2 more answers
What is the CORRECT answer to this question???
MrMuchimi
Hello!
The most logical equation would be b)
Hope it helps, have a nice day!

4 0
3 years ago
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Need Help! I don't get it
serious [3.7K]
Well hmmm let's say you take the car and go in the city for 60 miles with it, well, the car can do 60 miles per gallon, since you just drove it for 60 miles, you only spent 1 gallon of gasoline then.

that only happens if you drive it for 60 miles, what if you drive it for more, let's do a quick table on that,

\bf \begin{array}{ccll}
miles&cost\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
60&3.6(1)\\\\
&3.6\left( \frac{60}{60} \right)\\\\
120&3.6(2)\\\\
&3.6\left( \frac{120}{60} \right)\\\\
180&3.6(3)\\\\
&3.6\left( \frac{180}{60} \right)
\end{array}

and so on, now let's check if you less than 60 miles,

\bf \begin{array}{ccll}
miles&cost\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
40&3.6\left( \frac{40}{60} \right)\\\\
20&3.6\left( \frac{20}{60} \right)\\\\
10&3.6\left( \frac{10}{60} \right)
\end{array}

so, if you divide the amount of miles driven, by 60, when you have driven it for 120 miles, 120/60 is just 2, and the cost is for 2 gallons, or 3.6 * 2, which is 7.2 bucks, for 180 miles is 180/60 or 3 gallons for 3.6 * 3 bucks, and so on.

now, what if you drive it instead for "m" miles?

\bf \begin{array}{ccll}
miles&cost\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
m&3.6\left( \frac{m}{60} \right)\\\\
\end{array}\implies c=3.6\left( \cfrac{m}{60} \right)\implies c=\cfrac{3.6m}{60}
\\\\\\
c=\cfrac{3.6}{60}m\implies c=0.06m
3 0
3 years ago
Divide 48 in the ratio 3 : 6:7​
Marina CMI [18]

Answer:

48 \times  \frac{3}{16}  \\ 9

48 \times  \frac{6}{16}  \\ 18

48 \times  \frac{7}{16}  \\ 21

9:18:21

7 0
2 years ago
Read 2 more answers
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