subject
Mathematics, 18.09.2019 02:00 21580

Demarco is trying to determine how many pennies he has without having to count
them. he first weighs 20 pennies and finds they have a total weight of 54 grams. he then weighs
all the pennies and finds they weigh a total of 918 grams.
(a) determine how much a single penny
weighs, i. e. the grams per penny
(b) use your answer from (a) to determine how many pennies demarco has.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 19:30
Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)
Answers: 1
question
Mathematics, 21.06.2019 20:30
W-16=-12 solve each one step equation plz
Answers: 2
question
Mathematics, 21.06.2019 21:00
Solving algebraic equations 2m+3=11
Answers: 2
question
Mathematics, 22.06.2019 00:20
Last week , donnell practiced the piano 3 hours longer than marcus . together, marcus and donnell practiced the piano 11 hours . for how many hours did each young man practiced the piano
Answers: 3
You know the right answer?
Demarco is trying to determine how many pennies he has without having to count
them. he first w...
Questions
question
Mathematics, 08.03.2020 07:01
question
Mathematics, 08.03.2020 07:01
question
Mathematics, 08.03.2020 07:02
question
History, 08.03.2020 07:02
question
Mathematics, 08.03.2020 07:08
question
Health, 08.03.2020 07:08
question
Mathematics, 08.03.2020 07:10
question
World Languages, 08.03.2020 07:10
question
Mathematics, 08.03.2020 07:10