samoc22
22.09.2019 •
Mathematics
Auniversity has 30,330 students. in a random sample of 270 students, 18 speak three or more languages. predict the number of students at the university who speak three or more language?
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Ответ:
Language: 18 x
Total: 270 30330
Use cross multiply: 18(30330) = 270(x)
545490 = 270x
545490 divide by 270 equals 2022.
2022
Ответ:
The statement is True.
Step-by-step explanation:
" Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun" .
Anything that has mass also has gravity. Objects with more mass have more gravity.Earth's gravity comes from all its mass.
Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth.
Hence, the statement " The Earth and the moon are kept in orbit by gravity and mass" is TRUE.