3 years ago

When is taking a zero percent APR option more beneficial than a large rebate?

Mathematics

1 answer:

Aleks [24]3 years ago

6 0

When you take out a long term loan say 15-30 years.

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The latest online craze is a new game, Khan on Seven. You get 100100100 points for playing the game. In addition, you get 505050

goblinko [34]

Answer:

$50w+100 \ge 18000$

Step-by-step explanation:

Each seven-letter word is worth 50 points. $w$ words are then worth $w\times50=50w$ .

Since Sal gets 100 points for playing the game, his points total after $w$ words is $50w +100$ . If he wants to break the record, he must get, at least, 18000 points. "At least" in inequality means $\ge$ (just as "at most" means $\le$ ). Then the required inequality is

$50w+100 \ge 18000$ .

Note that the question says "18000 or more", which is why we used the $\ge$ symbol. If the phrase had been "more than 18000", we would have used $>$ .