The sum of two numbers is the same as four times the smaller number. if twice the larger is decreased by the smaller, the result is 30. find the numbers.

bigger number is 18

smaller number is 6

Step-by-step explanation:

let x be the bigger number and y the smaller

the sum of two numbers is the same as four times the smaller

x+y=4y

x=4y-y

x=3yi

if twice the larger is decreased by the smaller, the result is 30

2x-y=30ii

substituting i for x in ii

2(3y)-y=30

6y-y=30

therefore

5y=30

y=30/5

y=6iii

substituting iii for y in i to solve for x gives

x=3*6

=18

answer: 26

step-by-step explanation:

well, michelle wanted to measure the height of her school's flagpole she placed a mirror on the ground 48 feet from the flagpole then walk backwards until she was able to see the top of the pole in the mirror her eyes were 5 feet above the ground and she was 12 ft from the mirror using similar triangles find the height of the flagpole to the nearest tenth of a foot find the geometric mean of them pair of numbers. its easy math

its 4 because 2 times 2 is 4, if you double the number two you get four