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Alenkasestr [34]
3 years ago
11

4. What happens to the average kinetic energy of matter when heated?​

Mathematics
2 answers:
vitfil [10]3 years ago
3 0
Kinetic energy increases, and particles move more
Natalija [7]3 years ago
3 0

Answer:

because it is melted

Step-by-step explanation:

let

body heating on 100c and its average is 50

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can someone please help me figure this out? this is a summative and I'm failing for the year. it's algebra 1. ​
34kurt

Part (a)

  • x = number of bass caught
  • y = number of trout caught

x and y are nonnegative whole numbers.

3x represents the total weight of all the bass, since one bass weighs 3 pounds. Similarly, 2y is the total weight of the trout with each one being 2 pounds.  Adding up all the weight of all the fish, we get 3x+2y. This is set equal to 34 pounds which is the total stated weight caught.

In short, we end up with the equation 3x+2y = 34

Now onto the second equation. The expression 5x represents how many points Pat gets from catching x bass, because he gets 5 points per bass. Then we subtract off 2y to represent Pat losing 2 points per trout he catches. Overall, his point total is 5x-2y. This is set equal to his point total of 14.

The second equation is 5x-2y = 14

------------

Answer:

3x+2y = 34

5x-2y = 14

Both equations are needed to form this particular system.

===================================================

Part (b)

We could use a number of methods to solve for (x,y). Possibly the most efficient is elimination. Why? Because note how we have 2y up top and -2y down below. They add to 0y which is just 0. The y terms go away, and are eliminated. Afterward, all we're left with is x in which we can solve for just like any other single variable equation. More info is in part (c).

===================================================

Part (c)

Refer to the answer in part (a). We'll add straight down. So that means we have these three sets of addition operations.

  • 3x+5x becomes 8x
  • 2y + (-2y), aka 2y-2y, becomes 0y and the y terms go away
  • 34+14 simplifies to 48

After those three sets of addition operations, we're left with the much simpler equation 8x = 48. To solve this, we divide both sides by 8 and we get x = 6. This says Pat caught 6 bass.

Use this value of x to find y. So we'll plug x = 6 into either equation involving x,y and solve for y

3x+2y = 34

3(6)+2y = 34

18+2y = 34

2y = 34-18

2y = 16

y = 16/2

y = 8

So we can see that Pat caught 8 trout as well.

The check portion is shown in the attached image below. Effectively, all we're doing is replacing x and y with 6 and 8 respectively. Then we're simplifying both sides. Getting the same number on both sides results in a true equation, and therefore verifies we have the correct (x,y) solution.

Solution: (x,y) = (6,8)

Interpretation: Pat caught 6 bass and 8 trout

7 0
3 years ago
A. y:24=6:y<br><br> Can someone please help me
Nikolay [14]

Answer:

y = ± 12

Step-by-step explanation:

Given

y : 24 = 6 : y, or in fraction form

\frac{y}{24} = \frac{6}{y} ( cross- multiply )

y² = 144 ( take the square root of both sides )

y = ± \sqrt{144} = ± 12

6 0
3 years ago
1. Nguyen is decorating the room for her sister's baby shower party. She is wrapping
Rzqust [24]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
Convert 185 pounds into kilograms.
DiKsa [7]

Answer:

83.91 kilograms

Step-by-step explanation:

6 0
3 years ago
What two simler problems can you use to find 9 x 38?(Hint: think about ones and tens.)
pickupchik [31]
Nine times thirty-eight can also be thirty-eight times nine or (18 divided by 2) multiplied by 38 or like this

(18/2)times(38/2)

I hope this gives you an idea
6 0
2 years ago
Read 2 more answers
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