The temperature at 9 am was -11 degrees.
We know that at 5 am, it was -7 degrees. Since the change of temperature is a negative number, then we subtract the absolute value of the change from -7. -7 - 3 = -10. Following this pattern, we then have:
-10 - 2 = -12 (6 am - 7 am)
-12 - 5 = -17 (7 am - 8 am)
-17 + 6 = -11 (8 am - 9 am, added since it was a positive change of temperature)
And our final answer is -11 degrees Fahrenheit.
<span>60 x 40 = 2400 8 x 40 = 320 60 x 3 = 180 8 x 3 = 24 68 x 43 = 2924</span>
Answer:
All lines, with a value for the slope, will have one zero.
Step-by-step explanation:
To find the zero of a linear function, simply find the point where the line crosses the x-axis. Zeros of linear functions: The blue line, y=12x+2 y = 1 2 x + 2 , has a zero at (−4,0) ; the red line, y=−x+5 y = − x + 5 , has a zero at (5,0) .
Answer:
The man traveled 20km by train.
Step-by-step explanation:
If x is the distance he traveled by train, you can write this equation to represent the situation:
![10+x+2x=70](https://tex.z-dn.net/?f=10%2Bx%2B2x%3D70)
Then, you can simply solve for x:
![10+3x=70\\3x=60\\x=20](https://tex.z-dn.net/?f=10%2B3x%3D70%5C%5C3x%3D60%5C%5Cx%3D20)
The man traveled 20km by train.
![10+(20)+2(20)=70\\10+20+40=70\\70=70](https://tex.z-dn.net/?f=10%2B%2820%29%2B2%2820%29%3D70%5C%5C10%2B20%2B40%3D70%5C%5C70%3D70)