Answer:
7y=42 have 6 as a solution
Answer:
4. .88
5. 17/9
6. 67/12
7. 47/56
8. 209/45 or 4 29/45, 4.64
9. 143/30
Step-by-step explanation:
B. Convert the hours into mins (3h=180m) add 2 more min to that,now 182m and divide by how many miles he ran (26)
182/26=7m
Answer:
y = m x + b equation of a straight line
m = (y2 - y1) / (x2 - x1) slope of line
m = (17 - 10) / (-36 - 48) = 7 / -84 = -1 / 12
y = -x / 12 + b equation of line
Or b = y + x / 12
If y = 10 and x = 48 then b = 10 + 48 / 4 = 14
if y = 17 and x = -36 then b = 17 - 36 / 12 = 14
So b = 14 and y = -x / 12 + 14
We write the kinematics equations
a
vf = a * t + vo
rf = (1/2) * a * t ^ 2 + vo * t + ro
We have then
For the truck:
a = 0
vf = vo
rf = 45t
For the car:
a = 0
vf = vo
rf = 60 * (t-15)
Matching rf:
45t = 60 * (t-15)
Clearing t:
45t = 60t-900
60t-45t = 900
15t = 900
t = 900/15 = 60h
Answer:
it will take for the car to catch up with the truck 60h