Question

A store sells cooking oil of two different brands in bottles of the same size. The table below and the equation each show the price (y), in dollars, of different number of bottles of oil (x):

Brand A
Number of Bottles, x Price (dollars), y
2
22
3
33
4
44
5
55


Brand B
y = 17x

How many dollars more is the price of 8 bottles of brand B oil than the price of 8 bottles of brand A oil?
$5
$6
$28
$48

Answer 1

$48

Explanation:

The number of dollars more is the price of 8 bottles of Brand B than the price of 8 bottles of Brand A oil is:

$ 48

Explanation:

Brand A--

Number of bottles (x) Price (dollars) y

2 22

3 33

4 44

5 55

The function that represents the relation between the price of the bottles and the number of bottles is:

y=11x

Brand B--

Also, the price of the bottles depending on the number of bottles is:

Y=17x

According to Brand A the price of 8 bottles is: y=11×8=$ 88

and according to Brand B the price of 8 bottles is: y=17×8= $ 136

Also, the difference in the price of Brand B to that of Brand A for 8 bottles is:

$ 136-$ 88

= $ 48