Question

Write the following as decimals:2/5; 12/5; 18/5; 9/2 . Explain how you got the answer.​ Please help me!

Answer 1

Answer:

2/5= 2×2/5×2= 4/10= 0.4

12/5= 12×2/5×2= 24/10= 2.4

18/5= 18×2/5×2= 36/10= 3.6

9/2= 9×5/5×2= 45/10=4.5

Step-by-step explanation:

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Answer 2

Answer:

Isobars are atoms (nuclides) of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number (or number of protons) but have the same mass number