Answer:
6 tens to 21 = 81
Step-by-step explanation:
Given
6 tens
21
To write a number sentence to represent the description in the question, follow these steps;
So,
6 tens = 6 * 10
6 tens = 60
60 + 21
This gives a result of 81.
So, Addition of 6 tens to 21 is equal to 81
#1 is 28
Set the perimeters equal, as 6x - 2 = 8x - 12, solve for x = 5, and plug in.
Answer: −0.147540984 or 1.911885246