The amount Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges $ 30 $30 to mow a lawn that took him 1.5 1.5 hours to mow.Which equation models the amount in dollars, d d, Troy charges when it takes him h hours to mow a lawn? A d=20hd=20h B h=20dh=20d C d=45hd=45h D h=45dh=45d
The amount Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges $ 30 $30 to mow a lawn that took him 1.5 1.5 hours to mow.Which equation models the amount in dollars, d d, Troy charges when it takes him h hours to mow a lawn? A d=20hd=20h B h=20dh=20d C d=45hd=45h D h=45dh=45d
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
The amount Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges
$
30
$30 to mow a lawn that took him
1.5
1.5 hours to mow.
Which equation models the amount in dollars,
d
d, Troy charges when it takes him h hours to mow a lawn?
A
d=20hd=20h
B
h=20dh=20d
C
d=45hd=45h
D
h=45dh=45d
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