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Nutka1998 [239]
3 years ago
7

A student reduces the temperature of a 300 cm3 balloon from 60°C to 30°C. What will the new volume of the balloon be? (Remember

to be careful with the units.)
Mathematics
1 answer:
amid [387]3 years ago
4 0
Assuming constant pressure, V/T = constant.

Where T is absolute temperature, and V is volume.

T1 = 60 ° + 273.15 = 333.15 K
V1 = 300 cm^3

T2 = 30°C + 273.15 = 303.15 K
V2 = ?

V1 / T1 = V2 / T2 = >  V2 = [V1/T1] * T2

V2 = [300cm^3 / 333.15K] * 303.15K = 272.9 cm^3

Answer: 272.99 cm^3
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The object depicted by the force diagram is​
lubasha [3.4K]

Answer:

a) At rest

Step-by-step explanation:

25N+25N=50N

therefore, 50N is applied from both the sides

So, 50N - 50N = 0

the, net value is zero, here.

Hope it helps you in understanding!

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5 0
2 years ago
-2b+2(b-10)=2(10+5b)
alina1380 [7]

Answer:

b= -4

Step-by-step explanation:

On both sides of the equation has distributive property. We need to solve that first. Let's start with the left side of the equation.

*Positive multiplied by a negative equals a negative

-2b+2(b-10)= 2(10+5b)

-2b+2b-20= 2(10+5b)

-20= 2(10+5b)

Now let's solve the right side of the equation

-20= 20+10b

-20  -20

-40 = 10b

-40/10 = 10b/10

b= -4

Hope this helps!

5 0
3 years ago
Plzzzzzzz help me I really need it I will pay
Katena32 [7]

5 degrees is your answer.

EQUATION: 24-19=5

7 0
3 years ago
Read 2 more answers
Can anyone help ? i really don’t understand this question <br> If NP bisects X =<br> m/RNM =
snow_tiger [21]

We can conclude that the value of x is (∠MNP + 66)/8 and angle m∠RNM = ∠RNQ - ∠MNP + 78.

<h3>What are angles?</h3>
  • An angle is a figure in Euclidean geometry formed by two rays, called the sides of the angle, that share a common endpoint, called the vertex of the angle.
  • Angles formed by two rays are located in the plane containing the rays.
  • Angles are also formed when two planes intersect.
  • These are known as dihedral angles.

So,

  • ∠MNQ = ∠MNP + ∠PNQ
  • 8x + 12 = ∠MNP + 78
  • 8x + 12 - 78 = ∠MNP
  • 8x - 66 = ∠MNP
  • 8x = ∠MNP + 66
  • x = (∠MNP + 66)/8

Now, substitute 'x = (∠MNP + 66)/8' in 8x + 12:

  • ∠MNQ = 8x + 12
  • ∠MNQ = 8 ×(∠MNP + 66)/8 + 12
  • ∠MNQ = ∠MNP + 66 + 12
  • ∠MNQ = ∠MNP + 78

Hence, m∠RNM = ∠RNQ - ∠MNP + 78

Therefore, in the given question value of x is (∠MNP + 66)/8 and angle m∠RNM = ∠RNQ - ∠MNP + 78.

Know more about angles here:

brainly.com/question/25716982

#SPJ9

7 0
8 months ago
Tickets to the school musical are $5.00 for adults and $3.50 for students. If the total value of the tickets sold was $2517.50 a
stealth61 [152]
To answer this, you will write and equation in terms of the number of adult tickets sold and then solve for a, the number of adult tickets.

$5a + $3.50s = $2517.50
$5a + $3.50(a + 100) = $2517.50
5a + 3.50a + 350 = 2517.50
         8.50a  -350      -350
                  <u>8.5a</u>  = <u>2167.50</u>
                  8.5         8.5
    a = 255
The number of adult tickets sold was 255, and the number of student tickets sold was 355 (255 +100).


7 0
3 years ago
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