Answer: If element Q has 11 protons, its atomic <u>number</u> is 11.
Step-by-step explanation:
The atomic number of a chemical element is the total number of protons that each atom of that element has.
In other words: it indicates the amount of protons that is present in the nucleus of an atom.
In this sense, the periodic table of the elements arranges the chemical elements in the form of a table, ordered by their atomic number (number of protons), by their configuration of electrons and their chemical properties.
Answer: Alonzo sent 15 messages
Kala sent 22 messages
Bill send 60 messages
Step-by-step explanation:
Let x represent the number of messages that Alonso sent during the weekend.
Bill sent 4 times as many messages as alonzo. It means that the number of messages Bill sent is 4x.
Kala sent 7 more messages than alonzo. It means that the number of messages Kala sent is x + 7
Kala, bill alonzo sent a total of 97 text messages during the weekend.
It means that
x + 4x + x + 7 = 97
6x + 7 = 97
6x = 97 - 7 = 90
x = 90/6
x = 15
The number of messages that Bill sent is
4 × 15 = 60
The number of messages that Kala sent is
15 + 7 = 22
Answer:
2.64 km
Step-by-step explanation:
24 laps each of 110 meters means a total of :
24 * 110 = 2640 m
which translated to km are: 2.64 km
Answer:
21.6 miles
Step-by-step explanation:
1 hour and a half is 90 minutes
90 divided by 25 is 3.6
3.6 x 6 = 21.6
