Answer:
b = 9
Step-by-step explanation:
Step 1: Add <em>b</em> on both sides (Addition Equality)
5/3b + 5 = 20
Step 2: Subtract 5 on both sides (Subtraction Equality)
5/3b = 15
Step 3: Divide both sides by 5/3 (Division Equality)
b = 9
Answer: 4 V
Step-by-step explanation:
The formula for electrical power
is:

Where:
is the water heater electrical power
is he water heater voltage
is the electrical resistance
Isolating
:


Hence:

Answer:
12 and 14
Step-by-step explanation:
15 - 20% = 12
20 - 30% = 14
ez
The single line marks indicate the two lines have the same length. Thus, the unknown length is 3 cm. 15 mm = 1.5 cm, 25 mm = 2.5 cm. The rest is trivial.
Answer:
B
Step-by-step explanation:
The range is the difference between the largest and smallest members of the data set.
largest = 25 and smallest = 17
range = 25 - 17 = 8 → B