Thread: Find Number of Footsteps

If the first dinosaur is 6 of Alisha's footsteps or 9 of Carlos' footsteps, and another dinosaur is x of Alisha's footsteps, how many of Carlos' footsteps will it be?

Originally Posted by fdrhs1984

If the first dinosaur is 6 of Alisha's footsteps or 9 of Carlos' footsteps, and another dinosaur is x of Alisha's footsteps, how many of Carlos' footsteps will it be?

Think ratio.

I don't follow. Can you set up the ratio?

Let A be Alisha and C be Carlos.

1st dino:6A or 9C

6A=9C
A=(9/6)(C)
AX=(9/6)(C)(X)

Originally Posted by helloying

Let A be Alisha and C be Carlos.

1st dino:6A or 9C

6A=9C
A=(9/6)(C)
AX=(9/6)(C)(X)

This is actually not right.

The ratio of Alisha's footsteps to Carlos's is 6:9.

A/C = 6/9
6C = 9A

We want to solve for C, not A

C = (9/6)A = (3/2)A

So when A = x, then C = (3/2)x

Thanks for your effort.

Yes, this is the correct answer.