Question

The water level at Lake Penny changed −1 1/10 in. this year. Next year, it is predicted to change another −1 2/5 in. What is the total change that will likely occur in 2 years? Enter your answer as a simplified mixed number in the box. 20 POINTS

Answer 1

add 1 1/10  + 1 2/5

first get both fractions with the same bottom number: 2/5 = 4/10 ( multiply both numbers by 2)

so now you have  1 1/10 + 1 4/10 = 2 5/10

5/10 reduces to 1/2

 so answer is 2 1/2 inches, and since the level is going down it would be negative 2 1/2 inches

Answer 2

The total change that will likely occur in 2 years

$2\frac{1}{2}$ inches

Given :

The water level at Lake Penny changed  $-1\frac{1}{10}$in. this year. Next year, it is predicted to change another $-1\frac{2}{5}$ in

To find out the total change that likely to occur in 2 years, we need to add the changes that occurred in 2 years

Total change is $1\frac{1}{10} +1\frac{2}{5}$

to add both fractions make the denominators same

$1\frac{1}{10} +1\frac{2}{5} \\1\frac{1}{10} +1\frac{2\cdot 2}{5\cdot 2} \\1\frac{1}{10} +1\frac{4}{10} \\2\frac{5}{10} \\2\frac{1}{2}$

The total change that will likely occur in 2 years

$2\frac{1}{2}$

Learn more :

brainly.com/question/9590043