Mathematics, 23.04.2020 19:00 jhjhgjvygv
A concession stand sells hamburgers (h) for $2 and hotdogs (d) for $1. On Friday night they sold a total of 300 hamburgers and hotdogs and made $420. How many of each did they sell?
Which solution is reasonable?
A) 200 hamburgers and 50 hot dogs
B) 50 hamburgers and 200 hot dogs
C) 120 hamburgers and 180 hotdogs
D) 100 hamburgers and 100 hot dogs
Answers: 3
Mathematics, 21.06.2019 14:30
Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.
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Mathematics, 21.06.2019 21:30
In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000
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Mathematics, 21.06.2019 22:20
An object in geometry with no width, length or height is a(n):
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Mathematics, 22.06.2019 01:00
Which number produces an irrational number multiplied by 1/3
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A concession stand sells hamburgers (h) for $2 and hotdogs (d) for $1. On Friday night they sold a t...
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