So 30/48=15/(x+9)
this could be easily solved by recognizing the proportion (the other way is usiing full algebra and doing multiply both sides by 48(x+9) and then divide both sides by 30 then subtract 9)
30 is 2 times of 15
therefor 48 is 2 times of (x+9)
48=2 times (x+9)
divide both sides by 2
24=x+9
subtract 9
15=x
x=15
solution:
= $15 for 3 packages
= 5 packages per dollar (15/3)
Answer:
<em>Sali's speed was 18.75 km/h.</em>
Step-by-step explanation:
Jane took 3.5 hours to cycle the 63 km.
As, 
, so the speed of Jane will be: 
Suppose, the speed of Sali is 
km/h
Sali caught up with Jane when they had both cycled 30 km.
So, <u>the time required for Jane to cycle 30 km</u> 
and <u>the time required for Sali to cycle 30 km</u> 
Given that, Sali started to cycle 4 minutes or 
after Jane started to cycle. So, the equation will be.......
Thus, the speed of Sali was 18.75 km/h.
Answer:
C = 16π ft
Step-by-step explanation:
If we know the area
A = pi r^2
64 pi = pi r^2
Divide each side by pi
64 = r^2
Take the square root of each side
8 = r
The radius is 8
Now we can find the circumference
C = 2 *pi*r
C = 2*pi*8
C = 16pi
Answer:
the answer is 4k+2h=14 the andwer
