Question

tubes of oil paint are on sale for $0.50 off. cody bought 6 tubes of paint on sale and paid a total of $25.80. write and solve an equation to find r, the regular price in dollars of each tube of oil paint.

Answer 1

0.50 off of each

6 tubes bought

So, saved

0.50 * 6 = $3

Paid 25.80 total for 6 of them (after sale). Saved $3. So, regularly it costed:

25.8 + 3 = $28.80

6 cost 28.80, so 1 cost:

28.80/6 = $4.80

Regular Price of each tube = $4.80 (r)

Note: Equation >>>

`25.80+6\mleft(0.5\mright)=6r`