Question

Omar has a new credit card. He earns 300 reward points for every 100 dollars he spends. If Omar earned 1800 reward points, how much money did he spend?

Answer 1

Answer:

He earned 1800 reward points for 600 dollars

Step-by-step explanation:

Given the statement: Omar has a new credit card. He earns 300 reward points for every 100 dollars he spends. If Omar earned 1800 reward points.

Unit rate are expressed as a quantity of 1, such as 3 feet per second or 4 miles per hour, they are called unit rates.

Earn  300 reward point for every 100 dollars.

⇒ unit rate per reward = $\frac{100}{300}$ dollars

we have to find how many dollars he earned for 1800 points.

$Number of dollars = unit rate \times 1800$

                                 = $\frac{100}{300} \times 1800 = 600$

Therefore, he earned 1800 reward points for 600 dollars

Answer 2

Answer:

$600 money Omar spends .

Step-by-step explanation:

As given

Omar has a new credit card.

He earns 300 reward points for every 100 dollars he spends.

i.e

300 reward points for every 100 dollars .

Let  us assume that the Omar earned 1800 reward points when he spends x money.

Than the equation becomes

$x = \frac{1800\times 100}{300}$

$x = \frac{1800}{3}$

x = $600

Therefore $600 money Omar spends .