Respuesta :
in the beginning she drive half the distance means 5km
then returned back means she returned this 5 km back
then 5+5=10
then she went to the mall that is 10 km
so 10+10=20km
then returned back means she returned this 5 km back
then 5+5=10
then she went to the mall that is 10 km
so 10+10=20km
Answer:
the total distance that dally traveled is 20 km
Explanation:
given information:
the distance of sally's house and the mall is 10 km
she drives half a way to the mall and the goes back to the house to pick up the purse. So,
the distance of half way to the mall = 1/2 x 10 km = 5 km
the distance of half way to the house = half way to the mall = 5 km
the total distance from half way to the mall and return to the house (a)
a = 5 km + 5 km = 10 km
then, she drive directly to the mall, the distance (b), b = 10 km
the total distance that dally traveled (x)
x = a + b
= 10 km + 10 km
= 20 km