Answer:
units
Step-by-step explanation:
<u>Skills needed to solve: Order of Operations, Distributive Property, Perimeter Formula, Like Terms</u>
1) To solve this problem, you need to understand the perimeter formula, and that is:
--> 
P = Perimeter
L = Length
W = Width
2) Based on that, we are given that:
(since the length is x)
(since the width is x+3)
3) After that, we substitute in the values:
(with like terms and addition)
so: 
Use distributive property, which is 
get: 
So: 
Hope this helps and have a nice day!! :) :]
Answer:
One
Explanation:
3
y
=
18
x
+
21
XXX
⇔
y
=
6
x
+
7
5
y
+
55
=
30
x
XXX
⇔
y
=
6
x
−
11
both equations are linear and they are not co-linear
therefore there is exactly 1 solutio
The correct answer is D the very last one.
Answer:
Chemical Energy
Step-by-step explanation:
According to the Law of Conservation of Energy, energy is neither created nor destroyed. It is an entity that's always existing in the environment. It takes different forms of energy. Among the choices, the best answer would be letter B. Chemical energy. The chemical energy originates from the energy within the muscles that are dormant. Once used, this chemical energy is transformed into mechanical energy by the action of pushing his foot on the ground.
Use proportions to solve this. Set up the ratios with dollars on the top and pounds on the bottom and then cross-multiply to solve for x. Like this:
. Cross multiplying gives us 800x=168,000. Divide by 800 to get that x = 210. So $300 equals 210 pounds.
