Marco model bridge is 9 centimetres taller than joes model bridge. if joe's bridge is 31 centimetres tall. write an equation that could be used to find the height

9 + 31 = x. If Macros bridge is 9 centimeters taller than 31, you just have to do 9 + 31.

All you need to do is use the formula which is A = b x h. So, to solve, you just need to multiply 9 by 31 and I think that equals x. I'm not going to give you the answer because I want to see if you can solve it out yourself.

Update: I think I did the formula wrong. I think it's the user above who put the correct formula. Yeah, so I think you just add 9 and 31.

Anyways, just add 9 and 31 to get your answer.