Whats the question?
I think the question is "how much are 7 of them if the sale wasn't going on."
which, without the sale, each cookie is originally $1.5, multiplied by 7, is $10.5 so you save a lot of money.
i think this was your question
Answer:
5/2
Step-by-step explanation:
When you are finding the slope of a parallel line, the other line always has the same slope as the first line but different y intercept.
1 lawnmower= 8hours/12 =2/3 hour
30 lawnmowers= 30*2/3hour= 20 hours
Answer:
4 hours
Step-by-step explanation:
For three visits, the electrician earned $40 × 3 = $120 in "per-visit" charges. For working x hours, he earned 20x in "per-hour" charges. The total of these came to 50x:
120 +20x = 50x
120 = 30x . . . . . . . . subtract 20x
4 = x . . . . . . . . . . . . . divide by 30
The electrician worked 4 hours that day.
