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MATH / Assume 0<r<3. Below are five equations for x. Which equation has the largest solution x? …

Problem

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problem

Assume 0<r<30 < r < 3. Below are five equations for xx. Which equation has the largest solution xx? $\textbf{(A)}\ 3(1 + r)^x = 7\qquad \textbf{(B)}\ 3(1 + r/10)^x = 7\qquad \textbf{(C)}\ 3(1 + 2r)^x = 7$ $\textbf{(D)}\ 3(1 + \sqrt {r})^x = 7\qquad \textbf{(E)}\ 3(1 + 1/r)^x = 7$
Plain-text mathematical notation (without MathML)
Assume 0<r<3.  Below are five equations for x.  Which equation has the largest solution x?

$\textbf{(A)}\ 3(1 + r)^x = 7\qquad \textbf{(B)}\ 3(1 + r/10)^x = 7\qquad \textbf{(C)}\ 3(1 + 2r)^x = 7$ $\textbf{(D)}\ 3(1 + \sqrt {r})^x = 7\qquad \textbf{(E)}\ 3(1 + 1/r)^x = 7$
Original LaTeX notation
Assume $0 < r < 3$.  Below are five equations for $x$.  Which equation has the largest solution $x$?

$\textbf{(A)}\ 3(1 + r)^x = 7\qquad \textbf{(B)}\ 3(1 + r/10)^x = 7\qquad \textbf{(C)}\ 3(1 + 2r)^x = 7$ $\textbf{(D)}\ 3(1 + \sqrt {r})^x = 7\qquad \textbf{(E)}\ 3(1 + 1/r)^x = 7$

level

Level 2

type

Intermediate Algebra

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Source and history

task_id
889563f1-3c27-5477-812a-d138b433005c
task_key
intermediate~5falgebra--test--889563f1-3c27-5477-812a-d138b433005c
task_revision_id
1
config / split
intermediate_algebra / test

Official source

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