The mass of a freight train is 9.98 ⋅ 106 kilograms. the mass of an aircraft carrier is 7.3 ⋅ 107 kilograms. approximately how many more kilograms is the mass of an aircraft carrier than the mass of a freight train? show your work and write your answer in scientific notation.

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x