5(12.50 x 7) = 437.5
Explanation: you take the amount she makes for one hour (12.50), times it with the hours she works in a day (7), and then times it with how many days she works (5).
If there is 20 pencils there will be 5 erasers 20:5
Answer:
1000 *
Bacteria after 18 hours,
Step-by-step explanation:
The condition given in the problem is that the number of bacterial triple after every 2 hours.
So, after 2 hours, total bacteria= 1000 * 3
So, after 4 hours, total bacteria= 1000 * 3 * 3
Therefore, the general format for the number of bacteria is 1000 *
, where n is the number of times the bacteria has tripled.
In 18 hours, there are
ties that the bacteria has tripled.
Therefore, the no. of bacteria after 9 hours= 1000 * 
The magnitude of the vectors is 7.2
The magnitude of a vector is resolved by using a formula
<h3>Magnitude of a Vector</h3>
This is the displacement between two vectors and can be calculated as

where x is the magnitude of displacement between y and z.
In this question, the vectors are
Let's find the magnitude of this vector

The magnitude of the vectors is 7.2
Learn more on magnitude of vectors here;
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