Cammie can mow 1/2 acre in 25 minutes. if her rate is constant, cammie says she can mow 1 1/4 acres in one hour. is cammie correct? explain.

No, Cammie is not correct. She can mow   in one hour (See explanation).

Step-by-step explanation:

Convert the mixed number to an impoper fraction:

1. Multiply the whole number part by the denominator of the fraction and add the product to the numerator.

2. The denominator does not change.

Then:

Let be "x" the acres Cammie can mow in one hour.

You know that she can mow in 25 minutes, then you can set up the following proportion (Remember that 1 hour has 60 minutes):

Solving for "x", you get:

Convert from improper fraction to mixed number:

1. When you divide 6 by 5, the quotient is 1. This will be the whole number part.

2. The remainder is 1. This will be the numerator.

3. The denominator does not change.

Then:

Therefore, she can mow   in one hour.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify