Rachel will have run 114 miles in 6 weeks
Further explanation
Rachel run 3.2 miles each weekday
Rachel run 1.5 miles each of the weekend
We know that in one week there are:
- weekday is 5 days (Monday to Friday) ⇒ run 3.2 miles/day
- weekend 2 days (Saturday-Sunday) ⇒ run 1.5 miles/day
First step, we are going to find how many miles Rachel runs in one week:
\(=\boxed {(3.2 \times5) + (1.5 \times2)\ }\\ =\boxed {16+3\ }\\ =\boxed {19\ }\)
If in one week Rachel run 19 miles, so in 6 weeks she will have run:
\(=\boxed {19 \times6\ }\\ =\boxed {114\ }\)
In 6 weeks, Rachel will have run 114 miles
To multiply a decimal number the process are the same as multiplying the whole number. The difference is the placement of decimal point in the answer.
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Keywords: multiplication, decimal multiplication, two digits number additional, additional, area, measurement
