Answer:
0.00089
Step-by-step explanation:
<span>Hope this helps. c:</span>
Answer:
The dimensions of the rectangle are two unknowns: The length "l" and the width "w"
The perimeter of a rectangle is found as P = 2*l + 2*w
We also know that the length is 5cm more than twice the width. l = 2*w + 5
These two equations gives us a system of linear equations.
P = 2*l + 2*w
l = 2*w + 5
We can use substitution to replace the "l" in the first equation with 2*w + 5
P = 2*(2*w + 5) + 2*w
P = 4*w + 10 + 2*w
P = 6*w + 10
We know that P = 34cm
34 = 6*w + 10
Subtract 10 from both sides
24 = 6 * w
Divide both sides by 6
4 = w
Now that we know the width, we can find the length by substituting 4 for "w" in the second equation.
l = 2*4 + 5
l = 8 + 5
l = 13
The dimensions of the rectangle is 13cm x 4cm
Answer:
<h3>31/40</h3>
Step-by-step explanation:
3/8 + 2/5
= (3/8 × 5/5) + (2/5 × 8/8)
= 15/40 + 16/40
= 31/40
Answer:
6 square inches
Step-by-step explanation:
4x3=12
12/2=6
