Answer:
16/21
Step-by-step explanation:
So first get the Lcm of the denomninators
1. 9/21 + 7/21
2. Then add
16/21
hope this helped!
Mark me brainliest!
-Shadyk
Answer:
<em>The width of the lid is 15 cm</em>
Step-by-step explanation:
<u>The Perimeter of a Rectangle</u>
Given a rectangle of width W and height H, the perimeter is calculated as:
P = 2(W + L)
Jon used 56 cm of ribbon to go around the edge of a rectangular lid. This means the perimeter is:
2(W + L) = 56
Dividing by 2:
W + L = 28
Since the lid was L=13 cm long, the width is:
W = 28 - 13 = 15
The width of the lid is 15 cm
If we multiply or divide both sides of an inequality by a negative number, you have to flip the inequality. Hope this helps :)
