8a+4s=840
a=s+30
8(s+30)+4s=840
12s+240=840
12s=600
s=50
A=s+30
a=50+30
a=80
The drama play sold 80 adult tickets
Answer:
840
Step-by-step explanation:
120 is 40% of 300, and 840 is 40% of 2100 is 840.
Answer:
97π m² ≈ 304.7 m²
Step-by-step explanation:
The area of a circle is given by the formula ...
A = πr²
The sum of the areas of the two circles is ...
A = π(9 m)² + π(4 m)² = π(81 +16) m²
= 97π m² ≈ 304.7 m²
Answer:
-2 is the y-intercept of this function.
Step-by-step explanation:
Answer:
2.2894
Step-by-step explanation:
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