Question

Tom wants to buy some protein bars and magazines for a trip he has decided to buy three times as many protein bars with magazines each protein bar cost $.70 and each magazine cost $2.50 the sales tax rate on both types of these items are 6.5% how many of each item can he buy if he has $20 to spend

Answer 1

Answer:12 Protein bar and 3 magazines

Explanation:

Given

Tom purchases Protein bars 3 times as much as magazine

Each bar cost
`\$ 0.7`

Each magazine costs
`\$ 2.50`

Sales tax is 6.5 %

suppose Tom buy x magazines so

Price of magazine is
`2.5 x`

Price of bars is
`3* 0.7x=2.1 x`

Total Price
`=2.5 x+2.1 x=4.6 x`

After sales tax
`=4.6x(1+0.065)=4.899 x`

This must be less than
`\$ 20`

so
`4.899x < 20`

`x< 4.082`

thus
`x=4`

so he but 4 magazines and 12 protein bars