Answer:15
Step-by-step explanation:
Calculate the intercepts bu replacing x or y with 0 and solving for the other.
4x - 1 = 3y + 5
If x = 0,
4(0) - 1 = 3y + 5
-1 = 3y + 5
-6 = 3y
y = -2
If y = 0
4x - 1 = 3(0) + 5
4x - 1 = 5
4x = 6
x = 6/4 or 3/2
x int: (3/2,0)
y int: (0,-2)
Answer:

Step-by-step explanation:
The average speed in function of the temperature:

The distance in function of the average speed:

x and S are the same
![D(t)=0.5*[6 \frac{miles}{hour} +0.1*\frac{miles}{hour*F}(80F-t)]](https://tex.z-dn.net/?f=D%28t%29%3D0.5%2A%5B6%20%5Cfrac%7Bmiles%7D%7Bhour%7D%20%2B0.1%2A%5Cfrac%7Bmiles%7D%7Bhour%2AF%7D%2880F-t%29%5D)

Answer:
449/100
Step-by-step explanation:
1.67 + 2.82 = 4.49
4.49 = 4(0.01) + 49(0.01) = 449(0.01)
Multiplying 449 by 0.01 is the same as dividing 449 by 100
4.49 as fraction = 449/100
-Chetan