Answer: ![7.5\ km](https://tex.z-dn.net/?f=7.5%5C%20km)
Step-by-step explanation:
Given
Girl has traveled 6 km from her house
She has covered
of the distance
Suppose the total distance is x
![\therefore 6=\dfrac{4x}{5}\\\\\Rightarrow x=\dfrac{30}{4}\\\\\Rightarrow x=\dfrac{15}{2}\ \text{km}\\\\\Rightarrow x=7.5\ \text{km}](https://tex.z-dn.net/?f=%5Ctherefore%206%3D%5Cdfrac%7B4x%7D%7B5%7D%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B30%7D%7B4%7D%5C%5C%5C%5C%5CRightarrow%20x%3D%5Cdfrac%7B15%7D%7B2%7D%5C%20%5Ctext%7Bkm%7D%5C%5C%5C%5C%5CRightarrow%20x%3D7.5%5C%20%5Ctext%7Bkm%7D)
A+7=0
A+7-7=0-7
A=-7
B+3=7
B+3-3=7-3
B=4
X=-8 is the answer so it would be C
Answer:
the answer is 4
Step-by-step explanation:
hope this helps:)