ans is b...multiply first eqn by -2
=》 -6x -4y = -48...eqn 3
add eqn 2 and 3...
=》 -2y = -18
=》 y = 9...x =2
Answer:
![Range =24F- (-9F)=24+9F=33F](https://tex.z-dn.net/?f=Range%20%3D24F-%20%28-9F%29%3D24%2B9F%3D33F)
So then for the question :"What is the range between the high and low temperatures of the day?" We can answer 33 F
Step-by-step explanation:
Previous concepts
The range of a set of data is "the difference between the largest and smallest values of this dataset". Using this definition the formula for the range is:
![Range =Maximum -Minimum](https://tex.z-dn.net/?f=Range%20%3DMaximum%20-Minimum)
We assume that the minimum value for the temperature on this case is -9F , so then:
![Minimum =-9 F](https://tex.z-dn.net/?f=Minimum%20%3D-9%20F)
And we assume that the maximum value occurs at the afternoon, and on this case then:
![Max =24 F](https://tex.z-dn.net/?f=Max%20%3D24%20F)
Solution to the problem
And then using the definition of range we got:
![Range =24F- (-9F)=24+9F=33F](https://tex.z-dn.net/?f=Range%20%3D24F-%20%28-9F%29%3D24%2B9F%3D33F)
So then for the question :"What is the range between the high and low temperatures of the day?" We can answer 33 F
The best and most correct answer among the choices provided by the question is the first choice. The first step to do during the substitution method is to s<span>olve the top equation for x. </span><span>I hope my answer has come to your help. God bless and have a nice day ahead!</span>
Answer:
70
Step-by-step explanation:
The explanation is in the picture
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