Roger had 20 minutes to do a three-problem quiz. He spent 11 and 3/4 minutes on question A and 6 1/2
1 answer:
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This is a proportion problem that involves cross-multiplication
Set your problem up like so:
= 
Now cross multiply
2,000 x 3 = 6,000
now you're left with 5x = 6,000
Now divide by 5 on both sides
Answer is 1,200
Set your problem up like so:
Now cross multiply
2,000 x 3 = 6,000
now you're left with 5x = 6,000
Now divide by 5 on both sides
Answer is 1,200