4 x - 5 y = 9
- 5 y = - 4 x + 9 / · ( - 1 )
5 y = 4 x - 9 / : 5
150/3 = 50
1 rocket takes 50 gallons of fuel.
152 * 50 = 7,600
To fuel 152 mini rockets it would take 7,600 gallons of fuel.
Answer:
5
Step-by-step explanation:
Solve the equation first for "m"
6m + 12 = 42
6m = 30 (subtract 12)
m = 5 (Divide by 6)
5 is your answer
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