Answer:
-1/3,-2/4,-9/4, -1/2
Step-by-step explanation:
Let e be the amount of 1.35 beans and c be the amount of 1.05 beans...
(1.35e+1.05c)/120=1.15 we know e+c=120, so e=120-c making the equation:
(1.35(120-c)+1.05c)/120=1.15
(162-1.35c+1.05c)/120=1.15
162-0.3c=138
-0.3c=-24
c=80, and since e=120-c, e=40 so:
80 lb of the $1.05 beans are mixed with 40 lb of the $1.35 beans to produce a 120 lb mixture worth $1.15 per pound.
25.74 That is the answer I got! Have a great day!!!
<u><em>Answer:</em></u>
5%
<u><em>Explanation:</em></u>
% she earned in interest can be calculated by calculating the % of increase in the balance
<u>We have:</u>
Original balance = $12,450
Amount of interest = $622.5
<u>This means that:</u>
new balance = 12,450 + 622.5 = $13,072.5
<u>Now, we can get the percentage of increase:</u>
% of increase = 
<u>Substitute with the values we have to get the percentage of interest earned as follows:</u>
% of interest earned =
= 5%
Hope this helps :)
Answer:
K=7
Step-by-step explanation: