Answer:
19
Step-by-step explanation:
If c=5...
4+3c
=4+3(5)
=4+15
=19
This is a linear equation you can figure it out using a graph I don’t have one just helping out
Find an explicit formula for the arithmetic sequence -45,-30,-15,0,...−45,−30,−15,0,...minus, 45, comma, minus, 30, comma, minus
juin [17]
Answer:
= 15n - 60
Step-by-step explanation:
The n th term ( explicit formula ) of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 45 and d = - 30 - (- 45) = - 30 + 45 = 15, thus
= - 45 + 15(n - 1) = - 45 + 15n - 15 = 15n - 60
Answer:
We must think that the cars are traveling 630 miles in six hours.
Their combined speeds are x and x+25.
distance = velocity * time
Since, velocity = distance / time
(x + x + 25) = 630 / 6
2x + 25 = 105
2x = 80
So x = 40 mph and the other car's velocity is 65 mph.
Step-by-step explanation: