Tracy works at a hot dog stand.

• She sells 3 hot dogs and 2 pretzels for $15.00.

• She sells 5 hot dogs and 1 pretzel for $21.50.

Then Tracy sells 2 hot dogs and 4 pretzels. What is the total cost of this order?

Guest Mar 3, 2020

#1**+1 **

Given:

3 h + 2 p = 15 and

5 h + 1 p = 21.50 multiply this equation by -1

-10 h - 2 p = -43.00 and add this to the first equation

-7 h = -28.00

h = $ 4

then 3 (4) + 2 p = 15

12 + 2 p = 15 p = 1.50

now you know price of h and p and can compute the total cost of 2 h and 4 p.....I'll let you do that !

ElectricPavlov Mar 3, 2020