5353 minutes = 89.22 hours
Maybe the figures should be 53 and 20??
Let's let Billy = A
The formula to use for work problems is
Time = (A*B) / (A+B)
53 = ( (A +20)* A) / (A +20 + A) )
53 = ( A^2 + 20A ) / (2A + 20)
A^2 + 20A -106A -1060
A^2 -86A -1060
A = 96.935
Bobby Mows in 116.935 minutes
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-14b+28=-10b-30
-4b+28=-30
-4b=-58
b=58/4=29/2
Answer:
$0.63
Step-by-step explanation:
Raoul saves $14.50 each month for 3 months. Total amount saved is 14.50 * 3 = $43.50
He earned an interest of $0.33.
The total amount of money he has is thus: 43.50 + 0.33 = $43.83
Hector puts $3.60 each week for 12 weeks. Total amount save by Hector is thus 3.60 * 12 = $43.2
Now we are asked to get how much money Raoul has. To get this, we simply subtract the amount of money Hector has from that of Raoul
That would be 43.83 - 43.2 = $0.63
