One number is 8 times a first number. a third number is 100 more than the first number. if the sum of the three numbers is 940, find the numbers.

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116