In investing $5,400 of a couple's money, a financial planner put some of it into a savings account paying 3% annual simple interest. The rest was invested in a riskier mini-mall development plan paying 11% annual simple interest. The combined interest earned for the first year was $422. How much money was invested at each rate?

-232

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is b.

step-by-step explanation: