Question

The length of Mac’s bedroom is 3m 59cm. Dennis’ bedroom is 2m 89cm longer than Mac’s bedroom. How many centimeters long is Dennis’ bedroom?

Answer 1

6m 48cm

Step-by-step explanation:

First we can convert the length of Mac's bedroom to centimeters:

As 1 m is equal to 100 cm,

• 3m 59cm is equal to 300 cm + 59 cm = 359 cm.

As for Dennis' bedroom's information:

• 2m 89cm = 289 cm

Now we can calculate the length of Dennis' bedroom:

• 359 cm + 289 cm = 648 cm

Rewriting the answer leaves us with 6m 48cm.