Answer:
Jalen is <u>11.18 miles</u> from his starting point.
Step-by-step explanation:
Given:
Jalen jogged 10 miles due north, then turned due west and jogged 5 more miles.
Now, to find miles Jalen jogged from his starting point.
So, below is the figure attached to describe the scene.
Now, to get the distance of Jalen jogged from his starting point we use pythagoras theorem:
<em>Using square root on both sides we get:</em>
Therefore, Jalen is 11.18 miles from his starting point.
First, write an equation system based on the problem
An equation for "the perimeter of a rectangle is 70 in" can be written as following
∴ 2l + 2w = 70 <em>(first equation)</em>
An equation for "the length is 11 in more than its width" can be written as following
∴ l = w + 11 <em>(second equation)</em>
Second, solve the equation by substitution method o find the dimension of the rectangle.
Substitute/plug l as (w+11) into the first equation
2l + 2w = 70
2(w + 11) + 2w = 70
2w + 22 + 2w = 70
4w + 22 = 70
4w = 70 - 22
4w = 48
w = 48/4
w = 12
The width of the rectangle is 12 in
Substitute w with 12 to the second equation
l = w + 11
l = 12 + 11
l = 23
The length of the rectangle is 23 in
Third, find the area of the rectangle
a = l × w
a = 23 × 12
a = 276
The area of the rectangle is 276 in²
Hello! I believe the answer is 27.71.
I hope this helps!
Answer:
16
Step-by-step explanation:
i think