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Bess [88]
2 years ago
8

Paul wants to purchase a sweater that is marked down from its' original price of

Mathematics
1 answer:
Lesechka [4]2 years ago
5 0

Answer:

15$

Step-by-step explanation:

30×3= 90

25×3= 75

so, 90-75= 15$

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At sunset the temperature was 4 dgrees. the next morning at sunset it was -7 degrees. what is the difference betweeen these temp
DedPeter [7]

The difference between these temperatures for the sunset is found as 11 degrees.

<h3>What is temperature difference?</h3>

In science, the term Delta T (ΔT) refers to the temperature between two measuring points. The temperature varies according to time and/or location.

Some key features regarding the temperature difference are-

  • Merus, for example, uses it to assess the effectiveness of such a heat exchanger.
  • Or to evaluate the effectiveness of a heating or cooling system.
  • A fourth letter of a Greek alphabet is, (Δ). Whereas is the capital letter symbol and the lower case letter.
  • The sign is also used in mathematics. Describes the "difference" between any two changeable quantities. T is a value in a process that represents a difference between two observed temperatures.

Now, according to the question;

Let the initial temperature be 'T' = 4 degrees.

Let the final temperature be 't' = -7 degrees.

Therefore, the temperature difference is;

ΔT =  T - t

     = 4 - (-7)

     = 4 + 7

ΔT = 11

Therefore, the difference between these temperatures is 11 degrees.

To know more about the temperature difference, here

brainly.com/question/24746268

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8 0
1 year ago
What is part of a line, has one endpoint, and continues in one direction
Lina20 [59]
The answer is a ray.
6 0
2 years ago
Read 2 more answers
PLEASE HELP ALGEBRA 2
svet-max [94.6K]


1) I use an interest program on my calculator. You could also use the equation listed in the math textbook. Principle=2500  Rate=0.025   Years=3 No.compounds/yr=4   Answer is $2,694.08

2) All positives

3) Square root of 343

4) Square root of 48

I hope that helps. :)

4 0
3 years ago
(x+2)(2x+1)+(x+2)(2x-3) factorizar
koban [17]

Answer:

(x + 2)(4x - 2).

Step-by-step explanation:

(x+2)(2x+1)+(x+2)(2x-3)

Note that  (x + 2) is common to 2 parts of the expression. So we have:

(x + 2)(2x + 1 + 2x - 3)

= Ix + 2)(4x - 2)

8 0
3 years ago
How do i do diss plss​
ira [324]

Answer

Assuming you want an explanation and now numbers VVV

Step-by-step explanation:

The first column says those are the measurements for four people, since two is half of four you can divide all those measurements in half to fill out the "2 people" collum. To fill out the rest of the columns justs take the amount you just multiply. For example you'd need 1 tbsp of butter for two people, to find how much you need for six you multiply that by 3.

If you have any questions please ask, i hope this helps!

7 0
2 years ago
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