Mathematics, 14.11.2019 22:31 grace9874
harry had $32. he spent all the money buying three notebooks for x dollars each and four packs of index cards for y dollars each. if harry had bought five notebooks and five packs of index cards, he would have run short by $18. the following system of equations models this scenario:
3x + 4y = 32
5x + 5y = 50
use the system of equations to solve for x and y.
Answers: 1
Mathematics, 21.06.2019 12:30
Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.
Answers: 1
Mathematics, 21.06.2019 13:00
Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?
Answers: 3
Mathematics, 21.06.2019 22:00
Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?
Answers: 1
harry had $32. he spent all the money buying three notebooks for x dollars each and four packs of in...
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