The formula above gives the contribution $C,$ in dollars, to a certain profit-sharing plan for a participant with a

Question

$C=\begin{cases} 0.10s, \; \text{if} \; s\le 60,000,\ 0.10s +0.4(s-60,000), \; \text{if} \; s> 60,000. \end{cases}$ The formula above gives the contribution $C,$ in dollars, to a certain profit-sharing plan for a participant with a salary of $s$ dollars. How many more dollars is the contribution for a participant with a salary of $\$70,000$ than for a participant with a salary of $\$50,000 ?$ A. $\$800$ B. $\$1,400$ C. $\$2,000$ D. $\$2,400$ E. $\$2,800$ Answer: D Source: Official Guide

gmatter2012 · Answer

VJesus12 wrote: ↑Mon Sep 21, 2020 7:04 am $C=\begin{cases} 0.10s, \; \text{if} \; s\le 60,000,\ 0.10s +0.4(s-60,000), \; \text{if} \; s> 60,000. \end{cases}$ The formula above gives the contribution $C,$ in dollars, to a certain profit-sharing plan for a participant with a salary of $s$ dollars. How many more dollars is the contribution for a participant with a salary of $\$70,000$ than for a participant with a salary of $\$50,000 ?$ A. $\$800$ B. $\$1,400$ C. $\$2,000$ D. $\$2,400$ E. $\$2,800$ Answer: D Source: Official Guide Please correct the question for case s>60,000 its .04 and NOT .4 So we have to use 0.10s + .04 (s - 60,000) for the second case.

gentvenus · Answer

gmatter2012 wrote: ↑Mon Sep 21, 2020 9:24 pm VJesus12 wrote: ↑Mon Sep 21, 2020 7:04 am $C=\begin{cases} 0.10s, \; \text{if} \; s\le 60,000,\ 0.10s +0.4(s-60,000), \; \text{if} \; s> 60,000. \end{cases}$ The formula above gives the contribution $C,$ in dollars, to a certain profit-sharing plan for a participant with a salary of $s$ dollars. How many more dollars is the contribution for a participant with a salary of $\$70,000$ than for a participant with a salary of $\$50,000 ?$ A. $\$800$ B. $\$1,400$ C. $\$2,000$ D. $\$2,400$ E. $\$2,800$ Answer: D Source: Official Guide Please correct the question for case s>60,000 its .04 and NOT .4 So we have to use 0.10s + .04 (s - 60,000) for the second case. No wonder why I got stuck!

Scott@TargetTestPrep · Answer

VJesus12 wrote: ↑Mon Sep 21, 2020 7:04 am $C=\begin{cases} 0.10s, \; \text{if} \; s\le 60,000,\ 0.10s +0.4(s-60,000), \; \text{if} \; s> 60,000. \end{cases}$ The formula above gives the contribution $C,$ in dollars, to a certain profit-sharing plan for a participant with a salary of $s$ dollars. How many more dollars is the contribution for a participant with a salary of $\$70,000$ than for a participant with a salary of $\$50,000 ?$ A. $\$800$ B. $\$1,400$ C. $\$2,000$ D. $\$2,400$ E. $\$2,800$ Answer: D Source: Official Guide Solution: (Note: There is a typo. The number 0.4 should be 0.04.) If a participant has a salary of s = $50,000, then C = 0.1 x 50,000 = $5,000. If a participant has a salary of s = $70,000, then C = 0.1 x 70,000 + 0.04(70,000 - 60,000) = 7,000 + 400 = $7,400. Therefore, the difference is 7,400 - 5,000 = $2,400. Answer: D

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