Question

The ratio of red jelly beans to blue jelly beans is 5 to 7. If there are 49 bluejelly beans, how many red jelly beans are there? *

Answer 1

Part a

For this case we can create the following ratio:

`(5red)/(7blue)=(x)/(49blue)`

And then we can solve for x and we got:

`x=49\cdot(5)/(7)=35\text{red}`

Part b

For this case we can do the following:

`\frac{2\text{inches}}{100mi}=(3.5inches)/(x)`

Solving for x we got:

`x=(3.5\cdot100)/(2)=175mi`