the corner angle=90⁰ 45+45+90=180
The cost of the mixture is $69 *$1 = $69. If all 69 pounds were peanuts, the cost would be 69*$0.99 = $68.31, which is $0.69 less. Each pound of walnuts used instead of peanuts adds $0.03 to the cost of the mixture, so there were $0.69/$0.03 = 23 pounds of walnuts.
<span>_____ </span>
<span>Let w represent the number of pounds of walnuts in the mixture. Then 69-w is the number of pounds of peanuts. The cost of the mixture will be </span>
<span>1.02w + 0.99(69-w) = 1.00*69 dollars </span>
<span>0.03w + 68.31 = 69.00 </span>
<span>w = (69.00 - 68.31)/0.03 = 0.69/0.03 = 23</span>
Since there are 52 weeks in a year, we have 52 weeks=1 year and
57.3*1000 (k means 1,000) = 573,000/1 year. Multiplying it by 1 year/52 weeks (to cancel the years), we get 573000/52=around $<span>11019.23 as our answer</span>
