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tia_tia [17]
3 years ago
14

At 4pm the temperature started to change drastically. Each hour for three hours, the temperature decreases by 7 . Which expressi

on best shows another way to write the product for the temperature
7+7+7

7+7+7+7

(-1)(7+7+7)

(-7)+(-7)+(-7)+(-7)
Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0
The answer would be (-1) (7)(7)(7) because whenever -1 is multiplied by a number, it results in the opposite.
The rule for integer multiplication is: same sign times same sign = positive
different sign times different sign= negative
 
Since the key word is decreases, we know it is a negative times positive= negative. So any answer that does not have a negative answer will be eliminated. 

To make it easy, all the other options are positive. So, that leaves you with the 3rd option.  
Lyrx [107]3 years ago
3 0
First off, because the temperature is decreasing, that means the final answer would be negative, or we can also say that there would be a -1 to be multiplied by the change. 

Each hour temperature changes by 7. The question also says that temperature keeps on changing for 3 hours. Therefore the temperature change would be by 3 7's, or 7+7+7.

Lastly, add the -1 from the beginning since it is a negative temperature change, the answer is (-1)(7+7+7) 
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slava [35]
We have that

the slope of the line that is parallel to x=-3 is classified as undefined.

<span>let's check the answer
</span><span>1) take any two points of the line x = -3
</span>point A (-3,0)   point B (-3,5)
2) find the slope of the line x=-3
m=(5-0)/(-3+3)=5/0----------> is undefined

the answer is the option undefined


5 0
4 years ago
A video company randomly selected 100 of its subscribers and asked them how many hours of shows they watch per week. Of those su
Alik [6]

Answer:

1,135 people

For every 100 people only 45 people watch more than 10 hours per week. So, the ratio is (45/100), since the company has 2500 we want to know what (x/2500) is. The total ratio becomes (1,135/2,500).

The number is found by dividing 2500 by 100 to receive the common factor of 25. You multiply 45 by 25 to receive your total answer.

Step-by-step explanation:

For every 100 people only 45 people watch more than 10 hours per week. So, the ratio is (45/100), since the company has 2500 we want to know what (x/2500) is. The total ratio becomes (1,135/2,500).

The number is found by dividing 2500 by 100 to receive the common factor of 25. You multiply 45 by 25 to receive your total answer.

8 0
4 years ago
Solve the equation <br> 1/6(12z-18)=2z-3
Romashka-Z-Leto [24]
1/6(12z-18)=2z-3

12/6z-18/6 =2z-3

2z-3=2z-3

 there are infinite solutions for this equation or all real numbers
8 0
4 years ago
In the graphic below, ARV = ENV by:
GREYUIT [131]
The ans should be ASA because angle AVR is equal to angle EVN (opposite angles equal) 
8 0
4 years ago
Ming says that 0.24 &gt; 14 because 0.24 = 24. Which best explains Ming's error?
masya89 [10]

Answer:

0.24 = 24 hundredths, not 24

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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