The larger of two numbers is 12 more than the smaller number. if the sum of the two numbers is 74, find the two numbers

For a visual, say the numbers are x and y.

x = 12 + y

if the sum is 74,

x + y = 74

to solve for y,

y = 74 - x

now, plug this into the first equation and solve.

x = 12 + (74 - x)

x = 86 - a

2x = 86

x = 43.

plug the solution of x into x + y = 74 and solve

43 + y = 74

y = 31.

so, your two numbers are 43 and 31. :)

answer: 270

step-by-step explanation:

you have to times 200 by 1.35 to get your answer

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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