Answer:
3(a+b)
Step-by-step explanation:
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Answer:
A=80t+500 B=30t+700
820 Students
Step-by-step explanation:
80t+500=30t+700
-30t -30t
50t+500=700
-500 -500
50t=200
/50 /50
T=4
A=80(4)+500=820
B=30(4)+700=820
We are given dimension of billboard as 30 feet by 18ft.
since billboard is a rectangle so Area =l *b
Area of billboard = 30*18=540 feet square
1 gallon of paint covers 250 square feet
so for 540 square feet paint needed = 540/250 = 2.16 gallons
Answer: 2.16 gallons should be purchased to cover the entire billboard