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 =.
Answer:
7 times
Step-by-step explanation:
30 miles per 1 gallon
Car holds 12 gallons
30x12=360
2520/360=7
You multiply three( # of shirts) and 15.90 ( price)
The answer is $47.70 is how much he spend
Answer:
multiply lenght x with
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Under a reflection in the line y = x
a point (x, y ) → (y, x )