Answer:
$1367
Step-by-step explanation:
Given: Your brother has $2000
Airplane ticket cost $637
Lets assume the amount spent on everything else be "x".
We know total cost can not exceed $2000.
∴ Forming an inequation to find the amount spent on everything else.
⇒ [tex]Total\ cost\geq cost\ of\ Airplane\ ticket + x[/tex]
⇒ [tex]\$ 637+x\leq \$ 2000[/tex]
Now, solving it to find x
Subtracting both side by 637
⇒[tex]x\leq 2000-637[/tex]
∴ [tex]x\leq \$ 1363[/tex]
Hence, he can spend maximum of $1367 for eveything else.
