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netineya [11]
3 years ago
5

The temperature rose 4 degrees each hour for 3 hours. what is the total change in temperature

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

4 x 3 = 12. therefore, the total change in temperature is 12 degrees.


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Answer plz very easy ​
lisabon 2012 [21]

Answer:

-12

Step-by-step explanation:

-3 plus -3 plus -3 plus -3 equals -12

8 0
4 years ago
Read 2 more answers
Courtney works for the Red Cross and has been tasked with buying non-perishable items for families recently displaced by a hurri
beks73 [17]

9514 1404 393

Answer:

  • x + y = 20
  • 20x +30y = 450

Step-by-step explanation:

The equation for the total number of cases is ...

  x + y = 20

The equation for the total cost of the cases is ...

  20x +30y = 450

_____

<em>Additional comment</em>

The solution to these equations is (x, y) = (15, 5).

5 0
3 years ago
Plz Help me<br><br>3x + 5y = 13 <br>2x + y = 4​
Finger [1]

Answer:

solve simultaneously

start by labeling them equation 1 and 2 then choose whether you want to make x or y the subject from knew of the equations

7 0
3 years ago
What is the rational expression in simplest form? State any restrictions on the variables.
allochka39001 [22]

According to the question, the given rational expression can be simplified which is as shown below:

Rational expression = \frac{12-4x}{x^{2} -9}=\frac{4(3-x)}{(x-3)(x+3)}

For the simplification of the given expression, calculate the factors of the numerator as well as denominator terms and divide them from each other. In this change the sign of the expression before dividing with each other.

Rational expression = \frac{-4}{(x+3)}

The rational expression are also known as polynomial expression. The highest degree of these expression is two. And these expression uses concept of factor rule.

Therefore, the final expression is \frac{-4}{(x+3)}

What is polynomial expression?

Polynomial expression are those equation whose highest degree is two. It is also called as quadratic equation. And it is simplified by performing the factors on the given expressions.

To learn more about the polynomial expression from the given link:

<u>brainly.com/question/1280754</u>

#SPJ4

4 0
1 year ago
In which expression should the following exponents be multiplied? <br><br> 2^9/2^7
torisob [31]
The answer should be the second choice, “B”


A would be subtracting the exponents, while C & D are adding exponents
6 0
3 years ago
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