M=1.25
c=0.6
I got this by creating a systems of equations and I used the substitution method
Total distance 5 km; at 5km / 0.65 h =
Second part distance: x; at 6 km/h, during t2
First part distance: 5 - x; at 8.75 km/h, during t1
V = d/t ⇒ t = d/V
t2 = x/6
t1=[5-x]/8.75
t2 + t1 = 0.65
x/6 + [5-x]/8.75 = 0.65
x/6 + 5/8.75 - x/8.75 = 13/20
x/6 - x/8.75 = 13/20 - 5/8.75
x/6 - 4x/35 =13/20 - 20/35
35x - 24x = (35*6)(35*13 - 20*20)/(20*35)
11 x = 16.5
x = 16.5/11 = 1.5 km
Answer:
the ratio of 14:10 is equivalent to 100:71
if there are 100 lirts, there are 71 rews
:) hope this helped have a great day
Answer:
I think its the first one but I dont remember
Answer:
A) is the expression to represent total amount of money she earns babysitting for Smith family.
B) she will earn for Smith family for 7 hours
C) It would take for Margie to make when babysitting for the Smith family
Step-by-step explanation:
Given.
Mr. and Mrs. Smith pay Margie an hour to babysit their son, Shea.
Mr. and Mrs. Jones pay Margie $8 an hour to babysit their children, Sarah, Susan, and Dawn.
Let x be number of hours.
Solving for Part A.
Amount of Money earn from Smith family = Pay per hour Number of hours =
Solving for Part B.
x=7
Margie earns from smith family for 7 hours =
Solving for part C.
Margie earned =
To find number of hours
No of hour Margie has done babysitting for Smith family