Question

Macy’s sells 4 TVs for $680. How much would 7 TVs cost?

Answer 1

We find cost per one from all cost per number of sales = 680/4 = $170 per one.

Then we calculate 7 TVs cost by cost per one × number of sales = 170×7 = $1190

Answer 2

`\boxed{ \bold{ \huge{ \boxed{ \sf{1190 \: dollars}}}}}`

Explanation:

Cost of 4 TVs = $ 680

Finding the cost of 1 TV

`\sf{ (680)/(4) } = 170 \: dollars`

Finding the cost of 7 TVs

Since, the cost of 7 TVs is more than that of 1 TV. So, the cost of 1 TV is multiplied by 7

`\sf{i.e \: 170 * 7 = 1190 \: dollars}`

Hope I helped!

Best regards! :D