If it cost $8 to fill a gas tank in 1980, how much would it have cost to fill the same tank in 2010? Year
1960
1970
1980
1990
2000
2010
Previous question
Average G
Price as a Percentago Price Index
Price of 1980 Price (1980 - 100)
$0.31
25.4%
25.4
$0.36
29.5%
29.5
$1.22
100.0%
100.0
$1.23
100.8%
100.8
$1.56
127.9%
127.9
$2.84
232.8%
232.8
BB
It would have cost $ in 2010
(Round to the nearest cent as needed.)

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

answer: 8

step-by-step explanation: if you add the possibilities 5 different flavor and 3 different sizes 5+3=8

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x