Let:
x = amount in the account invested in 2.5%
20000 - x = amount in the account invested in 3%
Solution:
.025x + .03 (20000 - x) = 540
.025x + 600 - .03x = 540
-.005x + 600 = 540
-.005x = 540 - 600
-.005x = -60
x = 12000
Therefore, that person invests 12,000 at 2.5%
and
20,000 - 12,000 = 8,000 at 3%
$4,050, i got that by adding up each size than subtracting the totals
Answer:
Explanation:
Last year the equilibrium price and the quantity of good X were $10 and 5 million pounds, respectively.
The producer surplus is the difference between the minimum price that a producer is willing to accept and the price it actually gets. It can be found by calculating the area between the supply curve and the market price.
The producer surplus
= 
= 
= 
= $25
Because of strong demand this year, the equilibrium price and the quantity of good X are $12 and 7 million pounds, respectively.
The producer surplus
= 
= 
= 
= $42
Answer:
D. independent; dependent
Explanation:
In this example, learning strategy is the independent variable and word retention is the dependent variable