<em>The</em><em> </em><em>per</em><em>imeter</em><em> </em><em>of</em><em> </em><em>rectangle</em><em> </em><em>is</em><em> </em><em>1</em><em>0</em><em>x</em><em>-</em><em>2</em>
<em>pl</em><em>ease</em><em> </em><em>see</em><em> </em><em>the</em><em> </em><em>attached</em><em> picture</em><em> for</em><em> full</em><em> solution</em>
<em>H</em><em>ope</em><em> it</em><em> helps</em>
<em>G</em><em>ood</em><em> luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>
Answer: 1 hour
Step-by-step explanation:
Let the distance they walked be 
in time 
and the distance they walked be 
in time 
,then
Walking speed=
Riding speed=
Also the total time taken=3 hours
∴
...(1)
Since the total distance= 20 km
∴![d_1+d_2=20\\\Rightarrow4t_1+12t_2=20\\\Rightarrow4t_1+12(3-t_1)=20..............[\text{from (1)}]\\\Rightarrow4t_1+36-12t_1=20\\\Rightarrow-8t_1=-8\\\Rightarrow\ t_1=1](https://tex.z-dn.net/?f=d_1%2Bd_2%3D20%5C%5C%5CRightarrow4t_1%2B12t_2%3D20%5C%5C%5CRightarrow4t_1%2B12%283-t_1%29%3D20..............%5B%5Ctext%7Bfrom%20%281%29%7D%5D%5C%5C%5CRightarrow4t_1%2B36-12t_1%3D20%5C%5C%5CRightarrow-8t_1%3D-8%5C%5C%5CRightarrow%5C%20t_1%3D1)
Thus, the they spent 1 hour time in walking.
Answer:
9:1
Step-by-step explanation:
90:10
find number both can be divided by(simplify)
90/10 10/10
9:1
Commission is 6.5% since its a percent you want to convert it into a decimal so you want to divide by 100 : 6.5/100=0.065.
now since its a decimal you want to times it by how much she made:
4,800*0.065=312 hopefully this helps.
Answer: x=80
Step-by-step explanation:
x/8=10
x=8*10
x=80
