Answer:
1. $2
2. $4
3. 2x
Step-by-step explanation:
Answer:
Step-by-step explanation:
c
The area of the lane is 50 in² and its perimeter is 30 in.
<h3>
What is an area</h3>
Area is the amount of space occupied by a two dimensional object or figure. For a rectangle:
Area = length * width
Let the length of the lane be 10 in and the width be 5 in, hence:
Area = 10 * 5 = 50 in²
Perimeter = 2(length + width) = 2(10 + 5) = 30 in
The area of the lane is 50 in² and its perimeter is 30 in.
Find out more on area at: brainly.com/question/19819849
Step-by-step explanation:
Given that,
a + 2b = 17
Also,
2a + b = 4
By adding the above expressions we get,
a + 2b + 2a + b = 17 + 4
3a + 3b = 21.
3 (a + b) = 21
a + b = 21/3
a + b = 7 Let us take 'b' = 10
a + 10 = 7
a = 7 - 10
a = -3
Now let's check by verifying by putting a = -3 and b = 10 in the previous expressions
a + 2b = 17
-3 + (2 × 10) = 17
-3 + 20 = 17
17 = 17
2a + b = 4
(2 × -3) + 10 = 4
-6 + 10 = 4
4 = 4
Therefore, a = -3 and b = 10 [(-3,10)] is the solution.
