Answer:
0.75 hours
Step-by-step explanation:
Time taken by my pump = 6 hours
Time taken by friend's pump = x
Combined time = 1.5 hours
Rate :
my pump = 1/6
Combined rate = 1/1.5
Combinwd rate = 1/6 + 1/x
Hence :
1/6 + 1/x = 1/1.5
(x + 6) / 6x = 1.5
x + 6 = 9x
x - 9x = - 6
-8x = - 6
x = - 6 / - 8
x = 0.75 hours
Answer:
2 and 4
Step-by-step explanation:
I would say C so sorry if it’s not correct
0.10(200) = 20...the discount is $ 20
Answer:121.824 and 779.174
Step-by-step explanation:
just times the numbers by each other and you will get the answer