Answer: 45% Work: 20 is decreased to 11 9 = D x 20 --- ---- 20 20 20 divided by 9 = .45 .45 as a percent = 45 %
A number decreased by 4 is n-4
45 minutes 56 seconds
"Decreased by" just means "minus," so that's C-11.
6x - 7 = x + 38 Add '7' to both sides 6x = x + 45 Subtract 'x' from both sides 5x = 45 Divide both sides by '5' x = 9 The NUMBER !!!!!
a - 45 = -78 +45 +45 = -123 a= -123
45
The answer is 45 (44.99997).
79 + 45 = 124
When 18 is decreased by (-27), the result is 45.
The isotope, Se-79, has 45 neutrons (79 - 34 = 45)
From least to greatest: -45, -14, 79
45/79 x 100 = 56.9620253164556 recurring (that is, 56.96202531645569620253164556...) percent.
7.9 = 79/10
Answer: 45% Work: 20 is decreased to 11 9 = D x 20 --- ---- 20 20 20 divided by 9 = .45 .45 as a percent = 45 %
An atom of selenium with an atomic number of 34 has 34 electrons. The mass number of 79 suggests that the total number of protons and neutrons in the nucleus is 79. Since the atomic number (protons) is given as 34, the number of neutrons can be calculated as 79 - 34 = 45.
45