jcox626
08.10.2019 •
Mathematics
a rectangular floor space in a community center is 40 ft long and 32 ft wide. a volunteer is setting up chairs on the floor space. each chair needs an area of approximately 4 ft by 5 ft.
which estimate best approximates the number of chairs that can be set up on the floor space?
a. 20
b. 60
c. 260
d. 320
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Ответ:
Ответ:
Protons in every atom of an element
Step-by-step explanation:
The number of protons in an element is what determines the atomic number. Take Aluminum for instance. There's thirteen protons in the element of aluminum and the atomic number for that element is thirteen.
Hope this helps! :)