CPM Homework Help : PC3 Problem 7-52

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Home > PC3 > Chapter Ch7 > Lesson 7.1.4 > Problem 7-52

7-52.

Solve each of the following equations.

$5e^x=30$
Step 1 (a):
$e^x=6$
Step 2 (a):
$x\ln(e)=\ln(6)$

$200(1.05)^x=5000$
Hint (b):
Divide both sides by $200$ before taking the log of both sides and bringing the ' $x$ ' down.

$\log_3(x+5)=4$
Hint (c):
Rewrite the equation in exponential form.

$5\ln(x)-7=18$
Step 1 (d):
$5\ln(x)=25$
Step 2 (d):
$\ln(x)=5$
Step 3 (d):
Rewrite the equation in exponential form.

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