-50 + 17 = - 33
-33 + 17 = -16
- 16 +17 =1
This is arithmetic sequence, where 1st term is -50,
and common difference is 17.
Formula for the term of arithmetic sequence
a(n) = a(1) +d(n-1) = -50 +17(n-1) = -50 +17n - 17 = -67 +17n
So, we can write a formula
a(n) = -67 +17n
Answer:
100/3 or 33.34 miles a gallon
Step-by-step explanation:
Divide the number of miles by gallons of gas to get the number of miles traveled on one gallon of gas.
-7.2x + 8.7x = -3.5 - 10
1.5x = -13.5
x = -13.5/1.5
x = -9
Answer:8pts
Step-by-step explanation:
Answer:
$285.12
Step-by-step explanation:
first, we'll solve for the 45% sale.
45/100
0.45 x 480
= 216
subtract from the original price
480 - 216
= 264
now we'll solve for the 8%
8/100
0.08 x 264
= 21.12
add the 45% and 8%
264 + 21.12 = 285.12
