math problems need help step by step please
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Q9) Tom = 4x
Izzy = 5x
Total = 540
Equation = 4x + 5x = 540
= 9x = 540
= x = 540÷ 9
= x = 60
Tom = 4x = 4×60=240
Izzy = 5x = 5×60= 300
Q10) 30min = 15 problem
4hour = 1 hour = 60min
4 hour = 4×60 = 240 min
30 ÷ 240 = 8
8×15=120
Ans - He can solve 120 questions.
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