Question

Mary lives 1 3/4 miles from school. She rode her bycycle to school and back for 5 days. Which expression shows how to estimate the number of miles she rode?

Answer 1

1 3/4=1.75
1.75*2=3.5 for a day
3.5*5=17.5
She rode 17.5 miles

Answer 2

The expression which represents the number of miles Mary rode in 5 days is 5*(2 + 2).

What is mixed fraction?

A fraction represented with its quotient and remainder is a mixed fraction.

What is expression?

An expression is a number, a variable, or a combination of numbers and variables and operation symbols.

According to the given question.

Distance between Mary's house and school = $1\frac{3}{4} =\frac{7}{4}$

Number of days Mary rode her bicycle to school and back = 5

⇒ Distance travelled by Mary in one day = $2(\frac{7}{4} )=\frac{7}{2}$

Therefore, the expression which represents the number of miles she rode in 5 days = $5(\frac{7}{2} )=\frac{35}{2}=17.5 miles$ ≈ 20 miles

Hence, the expression which represents the number of miles Mary rode in 5 days is $5$ *(2+2).

Find out more information about expression and mixed fraction here:

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