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stepan [7]
3 years ago
9

How many mins are in 4 and a half hours.

Mathematics
1 answer:
Paraphin [41]3 years ago
7 0

Answer:

270 minutes

Step-by-step explanation:

1 hour = 60 minutes

4 hours = 240 minutes

half hour = 30 minutes

240 minutes + 30 minutes = 270 minutes

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Anyone know this??<br> Pls help like now.
tankabanditka [31]
A'(-4, 3) i think is the answer
7 0
4 years ago
Read 2 more answers
1068/55 simplified to a mixed number
nordsb [41]

Answer:

19 and 23/55

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

6 0
4 years ago
Which is the equation of the circle that has a diameter with endpoints located at (-2, 0) and (6, 6)?
Tpy6a [65]
(x-2)^2 + (y-3)^2 = 25


center is 2,3
diameter is 10
rad is 10/2 = 5


Mark brainliest please
5 0
3 years ago
What is the y-intercept of a line that has a slope of 1/4 and passes through point (8, 3)? 1
Juliette [100K]
I believe the y int would be 5
7 0
3 years ago
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Mole Conversion:<br> What is the mass of 3.13 x 1023 molecules of carbon dioxide?
4vir4ik [10]

Answer:

The mass of 3.13*10²³ molecules of carbon dioxide is 22.88 g.

Step-by-step explanation:

Avogadro's Number or Avogadro's Constant is the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole and it applies to any substance.

Then you can apply the following rule of three: if 6.023*10²³ molecules are present in 1 mole, 3.13*10²³ molecules are present in how many moles?

moles=\frac{3.13*10^{23}molecules*1 mole }{6.023*10^{23}molecules}

moles= 0.52

Since the molar mass of carbon dioxide is 44 g / mole, then the following rule of three can be applied: if there are 44 g in 1 mole, how much mass is there in 0.52 moles?

mass=\frac{0.52 moles*44 g}{1 mole}

mass= 22.88 g

<u><em>The mass of 3.13*10²³ molecules of carbon dioxide is 22.88 g.</em></u>

8 0
3 years ago
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