Solve the problem.A person plans to invest a total of $70,000 in a CD at 4% annual interest and a mutual fund that has a 3-year average annual interest of 10%. Let x and y represent the money (in dollars) invested in the CD and the mutual fund, respectively. How much money should be invested in each account to earn a total of $4000 in one year?
A. $40,000 invested at 4%; $30,000 invested at 10%
B. $20,000 invested at 4%; $50,000 invested at 10%
C. $30,000 invested at 4%; $40,000 invested at 10%
D. $50,000 invested at 4%; $20,000 invested at 10%
Answer: D
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Solve the problem.According to Binet's formula, FN =
A. 
.
B. 
.
C. 
.
D. 
N.
E. none of these
Provide an appropriate response.Solve: 
x = 40
Fill in the blank(s) with the appropriate word(s).
Solve the problem.To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 79 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)
A. 2 people B. 3160 people C. 316 people D. 31,646 people
To find the distance across a river a surveyor chooses points A and B , 50 m apart and a reference point C on the opposite side of the river. Approximate the distance, b , between A and C given that ?A = 54° and ?B = 77°.
(a) 54.6m (b) 77.6m (c) 64.6m (d) 45.6m (e) 85.6m