Which of the following is NOT true about unit rates? 1. A unit rate relates a quantity to

2. Unit rates can be used to compare two rates.

3. Any rate is equivalent to its unit rate.

4. A unit rate always relates quantities with the same units.

1,2,3,4 is the correct option

4

Step-by-step explanation:

For different problems or situations, the unit might be different (dollars, miles, crocodiles, etc). However, a unit rate can be used to compare two rates and is always equal to any other rate you can write for the same problem. (since 4 is clearly false, I assume 1 is correct, even though it seems to have been cut off).

u=11

Step-by-step explanation:

3u - 10 = 20

3u-10+10=20+10 |+10

3u=33 |÷3

3/3*u=33/3

1*u=11

u=11