Question

How far did Marcie jog on the two days, if she jogged $0.8$ mile on Wednesday and $0.9$ mile on Thursday?

Answer 1

Hint:Marcie jogged $0.8$ mile on Wednesday and $0.9$ mile on Thursday and we have to find the total distance covered by Marcie in these two days. We can find the distance by simply adding the decimal numbers or by adding the fractions that are converted from the decimal numbers to fractions.

Complete step by step answer:
To find the total distance covered by Marcie in two days, we need to add the distance covered on Wednesday and the distance covered on Thursday. But, the distance given is in decimal form. So, firstly we will convert these distances into a simple form. $0.8$ can be written as $\dfrac{8}{{10}}$ and $0.9$ can be written as $\dfrac{9}{{10}}$. So, to find the total distance we will add the distances.
Distance covered on Wednesday $ + $ Distance covered on Thursday
$ \Rightarrow \dfrac{8}{{10}} + \dfrac{9}{{10}}$
The denominator of both the numbers are same, so on adding we find,
$ \Rightarrow \dfrac{{17}}{{10}}$
After converting into a mixed fraction it becomes $1\dfrac{7}{{10}}$ mile and in decimal form it becomes $1.7$ mile.

Hence, Marcie jogged $0.8$ mile on Wednesday and $0.9$ mile on Thursday and $1.7$ mile is the total distance covered by Marcie in these two days.

Note:We can also find the total distance in a very easy manner, by just adding it without converting into fractions but the distance given is in the decimal form, so we have to add the distances very carefully, the decimal should be placed one above the other and then only we can add it. $0$ should be placed on $0$, (.) should be placed on (.) and $8$ should be placed on $9$. Without putting the decimals together, the addition will give us the wrong answer.