Answer:
a) 1.25
b) 9.38 (exact calculation 9.375)
c) 0.03 (exact calculation 0.025)
Step-by-step explanation:
a) divide 6.25 by 5
b) multiply 1.25 ( the cost for 100 ) by 7.5
c) Divide 6.25 ( cost for 500 ) by 250
There are 3. They're 16,25 and 36
Answer: 12 hours
Step-by-step explanation:
Let x = time it takes to fill the pool if the inlet pipe and drain pipe are both open
1/6 = portion of pool filled per hour by the inlet pipe
1/12 = portion of pool emptied per hour by the drain
1/x = portion of pool filled per hour if the inlet pipe and drain are both open
Then, 1/6 - 1/12 = 1/x
Multiply by the LCD, 12x, to obtain
2x - x = 12
x = 12 hours
Answer:
fx=8-3dx
Step-by-step explanation:
Answer:
kk
Step-by-step explanation:
