The sum of two number is 49. twice the larger is eight more than three times the smaller. find the larger number.

the larger number is 29.4

Step-by-step explanation:

Let x be the larger number

Let y be the second number.

x + y = 49               solve for y

y = 49 - x                Substitute this value of y into 2x = 3y + 8

2x = 3y + 8             Second equation

2x = 3(49 - x)         Remove the brackets

2x = 147 - 3x          Add  3x to both sides.

2x + 3x = 147          Combine like terms on the left

5x = 147                  Divide by 5

5x/5 = 147/5  

x = 29.4

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)