Answer:
xit the problem
Step-by-step explanation:
($ saved)+($ saves per week)x=($ cost)
$500+$95x=$3920
2.5*3 = 7.5 She run's 2 1/2 miles, which is equivalent to 2.5 miles, and 3 days per week, so you multiply 2.5 by 3
6.5 *2 = 13 She run's 6.5 miles per day for 2 days, again, because 6 1/2 is equivalent to 6.5 miles. Since she ran for 2 days so you multiply 6.5 by 2
13+7.5 = 20.5 miles
as for the answer, you just add the two numbers you got from Julie running
9514 1404 393
Answer:
- 2p +3d = 18.25; 4p +2d = 27.50
- popcorn: $5.75; drink: $2.25
Step-by-step explanation:
a) Let p and d represent the prices of a bag of popcorn and a drink, respectively.
Mohamed's purchase is ...
2p +3d = 18.25
Miguel's purchase is ...
4p +2d = 27.50
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b) We can subtract half the second equation from the first to get an equation for the cost of a drink.
(2p +3d) -1/2(4p +2d) = (18.25) -1/2(27.50)
2d = 4.50 . . . . . . simplify
d = 2.25 . . . . . . divide by 2
4p +2(2.25) = 27.50 . . . . substitute for d in the second equation
4p = 23.00 . . . . . . . . . subtract 4.50
p = 5.75 . . . . . . . . . divide by 4
The cost of a bag of popcorn is $5.75; the cost of a drink is $2.25.
