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 =.
Step-by-step explanation:
correct answer 2) y> 3x+2
Answer:
14.88x + 8.88y
Step-by-step explanation:
Just multiply the numbers:
14.88x + 8.88y
Answer:
15% per year
7.5% half year
5000 * 7.5% = $375 every 6 months.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Using the quadratic formula:
Since the discriminant is negative, -31, there are no real roots
