18%.
820 - 1000 = -180 (Ignore minus sign)
180/1000 = 0.18
18 × 100 = 18
Add a percentage sign =18%
The answer to your question is: Yes, I think I could help".
Thank you for the points.
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(6^4 x 10^2) / (6^2 x 2^4)
Divide the numerator and denominator by 6^2 ,
(6^2 x 10^2) / (2^4)
6^2 = 36
10^2 = 100
2^4 = 16
Plug these equivalents into the fraction:
(36 x 100) / 16 = 3600 / 16 = <em>225 </em>.
Answer:
2.25 (or
) g/mL
<u>Skills needed: Density</u>
Step-by-step explanation:
1) Briefly, let's cover what density is:
- It is 
- Measures the mass per unit of volume
- In this situation the formula for density is: 
--->
is the final mass
--->
is the initial mass
--->
is the final volume
--->
is the initial volume
2) In this case, we start out with a mass of 180 grams as stated in the problem, and also 50 mL of water initially.
This means that:
-
is 180 g
-
is 50 mL
3) Also, we end up with 270 g in mass, and 90 mL of water finally.
-
is 270g
-
is 90 mL
4) We can find density by substitute given the values above:

5) Our answer is 2.25 g/mL (since mass is grams (g), and volume is milliliters (mL) in the problem above).
Answer:
(C-D)/A = B
Step-by-step explanation:
C = AB + D
Subtract D from both side
C-D = AB + D-D
C-D = AB
Divide each side by A
(C-D)/A = AB/A
(C-D)/A = B