Question

elijah’s balance
elijah’s brother’s balance
100 + 30x
100 + 12
how much money will each brother have after 4 weeks? 12 weeks?

• enter the answer in each space provided. use numbers instead of words.

\t\tweeks\telijah’s balance\telijah’s brother’s balance
\t\t4 weeks\t$square$\t$square$
\t\t12 weeks\t$square$\t$square$

Explanation:

Step1: Substitute x=4 for Elijah

$\text{Balance} = 100 + 30(4)$
$= 100 + 120 = 220$

Step2: Substitute x=12 for Elijah

$\text{Balance} = 100 + 30(12)$
$= 100 + 360 = 460$

Step3: Calculate brother's balance at 4 weeks

$\text{Balance} = 100 + 12 = 112$

Step4: Calculate brother's balance at 12 weeks

$\text{Balance} = 100 + 12 = 112$

Answer:

	4 Weeks	12 Weeks
Elijah's Brother's Balance	$112	$112