Question

If 33 laptops cost 30,000 in dollars, which proportion could be used to determine the cost of 11 laptops?

Answer 1

30,00 divided by 33= 909.09 times 11=9,999.99

Answer 2

The cost of 11 laptops is 11c

Using the parameters given :

• Number of laptops = 33
• Cost of 33 laptops = 30000

The expresssion to determine the cost is :

• Number of laptops = Cost of laptops

Now we have;

33 = 30000

11 = c

cross multiply

33c = 330000

c = 10000

The cost of 11 laptops : 11*c