Answer:
9 Superscript negative 3
Step-by-step explanation:
John needs 13 bottles of water from the store. john can only carry 3 at a time. what's the minimum number of trips john needs to
1 answer:
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Answer: Third option.
Step-by-step explanation:
Let be "x" the approximate actual width (in feet) of the car.
Based on the information provided in the exercise, you know that the scale of the model car is this one:
Which can be written as a fraction:
Therefore, if you know that the width of the model car is 2.3 inches, you can set up the following proportion:
Finally, you must solve for "x" in order to find its value.
So you get the following result:
Answer:
C) 80 milliamperes
Step-by-step explanation:
The amount of current flowing through a circuit is directly proportional to the amount of voltage applied across the circuit. The relation between current(I) and voltage(V) can be expressed as:
Here, is the proportionality constant. It is given that, when voltage is 2 volts, 40 milliamperes(
amperes) current flow through the circuit. Using these values we can find the value of proportionality constant. i.e.
Using this value, we can establish the relation between I and V as:
Now, we need to calculate value current (I) if voltage is equal to 4 volts. Substituting V = 4 in above equation, we get:
Thus, the value of current will be 80 milliamperes