Question

Rachel runs 3.2 miles each weekday an 1.5 miles each of the weekend.how many miles will she have run in 6 weeks

Answer 1

The answer is 114 because 1.5 x 2=3 3.2 x 5 =16 19 x 6=114

Answer 2

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