Answer:
Step-by-step explanation:
To simplify this expression, first use the distributive property to distribute 
.
Simplify.
Combine like terms, 
and 
.
The simplification of 
is .
I hope this helps ^^
Good luck
Answer:
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To answer the question above, use conversion factors and dimensional analysis. In this given, it is easier to use grams as the basis.
a. (2 centrigrams) x (1 gram / 100 centigrams) = 0.02 grams
b. 2 grams
c. (2 hectograms) x (1 gram / 0.01 hectogram) = 200 grams
d. (2 kilograms) x (1 gram / 0.001 kilogram) = 2000 grams
e. (2 milligrams) x (1 gram / 1000 millimeters) = 0.002 grams
Thus, the answer is 2 milligrams.
1999 Team won - 15
2000 Team won - 18
2001 Team won - 20
20x+5y=120
10x+7.5y=80 multiply this one by 2
___________
20x+5y=120
20x+15y=160 subtract
___________
-10y=-40 divide both sides by -10
____________
y=4
20x+5(4)=120 plug 4 in for y in the first equation
20x+20=120 multiply
20x=100 subtract
x=5 divide to find x
