Mathematics, 11.10.2021 03:10 palcochran1313
Ravi had some face masks. He sold 1/4 of the face masks on Monday and 82 face masks on Tuesday. He then donated 2/5 of the remaining face masks to a nursing home and 120 face masks to some needy families. In the end, he had 108 face masks left. How much face masks did Ravi have at first?
Answers: 3
Mathematics, 21.06.2019 16:20
Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais
Answers: 2
Mathematics, 21.06.2019 23:00
Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?
Answers: 1
Mathematics, 22.06.2019 01:50
The length of time it takes to find a parking space at 9 a.m. follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. find the probability that it takes at least 8 minutes to find a parking space. (round your answer to four decimal places.)
Answers: 1
Mathematics, 22.06.2019 04:30
Jocelyn estimates that a piece of wood measures 5.5 cm. if it actually measures 5.62 cm, what is the percent error of jocelyn’s estimate? a. 2.13% b. 2.18% c. 12% d. 46.83%
Answers: 2
Ravi had some face masks. He sold 1/4 of the face masks on Monday and 82 face masks on Tuesday. He t...
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