Answer:
<u>If P is 30 units and l is 10 units, w is 5 units</u>
Step-by-step explanation:
1. Let's check the information given to resolve the question:
P = 2l + 2w
If P is 30 units and l is 10 units, w is units
2. Replacing with the values:
P = 2l + 2w
30 = 2 (10) + 2w
30 = 20 + 2w
-2w = 20 -30 (Subtracting 2w and - 30 to both sides)
-2w = - 10
2w = 10 (Multiplying by - 1 at both sides)
<u>w = 5 (Dividing by 2 at both sides)</u>
<u>If P is 30 units and l is 10 units, w is 5 units</u>
<u>Note: Same answer than question 13938258</u>
Answer:
the easy way is to take notes and study them before a test
Step-by-step explanation:
i took this lesson a few weeks ago
I think you answer should be 51
Firstly, subtract a^2 on both sides: 
Next, we are going to be using the difference of squares, which is
. Use this on the right side of the equation: 
Lastly, square root both sides of the equation, and <u>your answer will be
</u>
Answer:
first one
Step-by-step explanation:
he adds 5(7) to his collection then 8(4) too and after wards he throws away 2