Q: The ratio of blue cars to non-blue cars in the parking lot is 2:7. If there are 1260 cars in the parking lot, how many are blue?
.
.
.
.
Answer: 280
Solution by hand:
Number of blue cars = 2x
Number of non-blue cars = 7x
2x + 7x = 1260
9x=1260
x = 140
There are 2x blue cars, so there are 280 blue cars.
Solution using my TI-84 Plus Program RATIO:
Total number of items = 1260
Number of categories of items = 2 (blue and non-blue)
Ratio part for category 1 (blue) = 2
Ratio part for category 2 (non-blue) = 7
Distribution is: blue = 280 and non-blue = 980.
Highly Effective Headline!

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.