Let Pencils be P
Let notebooks be N
Let graph paper be G
Let cost be C
(Always write a let statement before you write and algebraic equation)
C= (Px0.25)+(Nx1.75)+(Gx0.05)
The first answer is correct
Answer:
8/3
Step-by-step explanation:
Convert the mixed numbers to improper fractions, then find the LCD and combine.
Exact Form:
8
/3
Decimal Form:
2.
6
Mixed Number Form:
2 2
/3
Answer:
8 grams
Step-by-step explanation:
The balance is in equilibrium, so the weights of the two sides are equal.
Let the weight of a square be s.
Left side: 2s + 4
Right side: s + 3(4) = s + 12
The weights are equal, so we set the two expressions equal.
2s + 4 = s + 12
s = 8
Answer: The weight of a square is 8 grams.
Question 2: The first step was the combine the like terms; in this example he is subtracting the 3x on both sides of the =.