1. You buy a Php 20,000.00 piece of equipment for nothing down and Php 4,000.00 per year for 6 years. What interest rate are you paying? The formula relating present worth P, annual payment A, number of years n, and interest rate i is A = P i(1 + i)" (1 + i)" - 1 Use Secant Method. Terminate the computation when Σ. < 0.0005 %.

Brief Principles of Macroeconomics (MindTap Course List)
8th Edition
ISBN:9781337091985
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter9: The Basic Tools Of Finance
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Problem 3CQQ
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1. You buy a Php 20,000.00 piece of
equipment for nothing down and Php
4,000.00 per year for 6 years. What interest
rate are you paying? The formula relating
present worth P, annual payment A,
number of years n, and interest rate i is
A = P
H
i(1 + i)"
(1+i)" -1
Use Secant Method. Terminate the
computation when Σ, ≤ 0.0005%.
2. The flow for an open channel is given by
the equation Q VA
B
H
where:
and
=
1 R² S
n
n = Manning's roughness coefficient
R = hydraulic radius
R = A/P
A = area of the channel
A = (BH)
P = wetted perimeter
P = (B + 2H)
S = slope of the open channel
Determine the height of the water (H) in the open
channel if the flow Q = 5 m³/s.
The width of the channel is 20 m, Manning's
roughness coefficient n = 0.03, and slope of the
channel S = 0.0002
Use Newton-Raphson Method accurate up to 4
significant figures (Σ, = 0.005%)
Transcribed Image Text:1. You buy a Php 20,000.00 piece of equipment for nothing down and Php 4,000.00 per year for 6 years. What interest rate are you paying? The formula relating present worth P, annual payment A, number of years n, and interest rate i is A = P H i(1 + i)" (1+i)" -1 Use Secant Method. Terminate the computation when Σ, ≤ 0.0005%. 2. The flow for an open channel is given by the equation Q VA B H where: and = 1 R² S n n = Manning's roughness coefficient R = hydraulic radius R = A/P A = area of the channel A = (BH) P = wetted perimeter P = (B + 2H) S = slope of the open channel Determine the height of the water (H) in the open channel if the flow Q = 5 m³/s. The width of the channel is 20 m, Manning's roughness coefficient n = 0.03, and slope of the channel S = 0.0002 Use Newton-Raphson Method accurate up to 4 significant figures (Σ, = 0.005%)
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