betsy, a recent retiree, requires $6,000 per year in extra income. she has $70,000 to invest and can invest in b-rated bonds paying 15% per year or in a certificate of deposit (cd) paying 5% per year. how much money should be invested in each to realize exactly $6 comma 000 in interest per year? the amount of money invested at 15 % equals $ the amount of money invested at 5% equals

answer: it is 1: 47 pm

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

lol.

it's ok we all do this sometimes.

-aparri

you need to add a picture