If a, b, c is an arithmetic sequence then a + c = 2b
a = 1/10; b = 3/20, c = 5/30
a + c = 1/10 + 5/30 = 3/30 + 5/30 = (3+5)/30 = 8/30
2b = 2 · 3/20 = 3/10 = 9/30
8/30 ≠ 9/30
If a, b, c is a geometric sequence then ac = b²
ac = 1/10 · 5/30 = 1/2 · 1/30 = 1/60
b² = (3/20)² = 9/400
1/60 ≠ 9/400
<span>Answer: Neither.</span>
John caught 18 fishes and Peter caught 30 fishes.
Step-by-step explanation:
Let,
Fishes caught by John = x
Fishes caught by peter = y
Total fishes caught = 48
According to given statement;
x+y=48 Eqn 1
x=
Eqn 2
Putting Eqn 2 in Eqn 1;

Multiplying each term by 5;

Dividing both sides by 8

Putting y=30 in Eqn 1

John caught 18 fishes and Peter caught 30 fishes.
Keywords: linear equation, substitution method
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Answer:
10x+5y=120
y=-2x+24
Step-by-step explanation:
x=adult tickets
y=children tickets
120=total spent
10x+5y=120
5y=120-10x
y=(120/5)-(10x/5)
y=24-2x or y=-2x+24