Voltage = 220 v Current = 4 amps Resistance = 18 55 224 880
2 answers:
Answer: The correct answer is 55 ohm.
Step-by-step explanation:
The mathematical expression fro ohm's law is as follows;
V=IR
Here, V is the voltage, I is the current and R is the resistance.
It is given in the problem that Voltage = 220 v Current = 4 amps.
Calculate the resistance by rearranging the expression.
Put V = 220 V and I= 4 A.
R= 55 ohms
Therefore, the value of resistance is 55 ohms.
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Answer:
The number of trees at the begging of the 4-year period was 2560.
Step-by-step explanation:
Let’s say that x is number of trees at the begging of the first year, we know that for four years the number of trees were incised by 1/4 of the number of trees of the preceding year, so at the end of the first year the number of trees was, and for the next three years we have that
Start End
Second year --------------
Third year -------------
Fourth year --------------
So the formula to calculate the number of trees in the fourth year is
we know that all of the trees thrived and there were 6250 at the end of 4 year period, then
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Therefore the number of trees at the begging of the 4-year period was 2560.
Convert the fractions so they both have the same denominator (bottom part of the fraction)
1/5 = 7/35
This is because 5*7=35, so 1*7=7
1/7 = 5/35
This is because 7*5=35, so 1*5 =5
Then subtract the top numbers to get the answer:
1/5 = 7/35
This is because 5*7=35, so 1*7=7
1/7 = 5/35
This is because 7*5=35, so 1*5 =5
Then subtract the top numbers to get the answer: