Question

chemistry

Answer 1

@vocaloid

Answer 2

make sure to check how many decimal places each number in the problem has

you want the answer to match the least # of decimal places

problem 1) 13.78 has 2 decimal places. 1.3 has 1 decimal places. 1 is the lowest number of decimal places. so the answer needs to have 1 decimal place. round 12.48 to 1 decimal place.

Same logic with problem 2

Problem 3 looks good

Answer 3

12.5 and 10.7

Answer 4

or 11?

Answer 5

Problem 1, good (12.5)

Problem 2: 11.970 has 3 decimal places. 1.37 has 2 decimal places. therefore, your answer needs 2 decimal places ---> 10.60 (that last 0 is important)

Answer 6

so the answer is 10.60?

Answer 7

yes