ANSWER: 2j-61
j = Jenny's age
Answer:
mean - 12.5
SD - 12.0
Step-by-step explanation:
If the price of paper increases by a lot, then book producers would respond by supplying less books.
17 points after 0, 11 points after 0, and 2 points after 0
Answer:
Step-by-step explanation:
Lets Price of a DVD is fixed i.e. 15
and One CD price is 5 (Not fixed)
In First situation
2 DVDs and 1 CD cost = 35 as given
2 x 15 + 5 = 35
Lets one CD price is 7.5
In Second situation
2 x 15 + 2 x 7.5 = 45
Its mean CD price may be between 5 to 7.5
In asked scenario, Martin has 50
1 DVD and 3 CDs?
1 x 15 + 3 x 7.5 = 37.5
37.5 is lesser than 50
Hence Martin has enough to buy 1 DVD and 3 CDs.