Answer:
Step-by-step explanation:
Write down what you know:
2004 = 5 3/4 ft
5/6 ft per year, for 7 years
Height in 2011, we don't know so let's make that 'x'
Put your values in a simple equation
5 3/4 + 7( 5/6 ) = x
5 3/4 + 5 5/6 = x
Change to improper fractions
23/4 + 35/6 = x
Make common denominators by multiplying the 1st fraction by 3 and the 2nd by 2
69/12 + 70/12 = x
139/12 = x
Change your fraction back to a mix number
11 7/12
And there you go! The tree was 11 7/12 ft tall in 2011.
