Answer: 71
Step-by-step explanation:
Warmest - coldest
= -12 - (-83)
= -12 + 83
= 71
X - invested for the money at 11%
70 000 - x - deposited at 12%
0.11x + 0.12(70000-x)=7900
0.11x + 8400 - 0.12x = 7900
8400- 7900 = 0.01x
500 = 0.01x
x=50 000 invested at 11%
rest (20K) invested at 12%
X=90y=70I used the process of elimination.
Use your calculator put all of them together then you’ll get your answer
