Answer: a = 15
Step-by-step explanation:
6a + 10 = 3a + 55
Subtract 10 from both sides
6a = 3a + 45
Subtract 3a from both sides
3a = 45
Divide each side by 3
a = 15
Answer:
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Step-by-step explanation:.
Answer:
The common difference is 2
Step-by-step explanation:
The formula for an arithmetic sequence is
an = a1+d(n-1)
a1 = -5
a10 = 13
Substituting n=10 a10=13 and a1 =-5
13 = -5 +d (10-1)
13 = -5 +9d
Add 5 to each side
13+5 = -5+5 +9d
18 = 9d
Divide each side by 9
18/9 = 9d/9
2 =d
Answer:
Ok
Step-by-step explanation:
Answer: The correct answer is 11 miles.
Step-by-step explanation: In order to solve this problem you need to replace y with $27.
27 = 2x + 5
Subtract 5 from each side:
22 = 2x
Divide both sides by 2:
11 = x
Therefore, she has enough money to travel up to 11 miles.