Question

Use the equation 2w = P + 40 to complete the table showing the relation between the number of pulses (P) and the weight of the drone (w) in grams. Write your answers in the boxes given below.

Answer 1

Question:

Solution:

Consider the following equation:

Equation 1:

`2w=p+40`

solving for w, this equation is equivalent to:

`w\text{ =}(1)/(2)p+20`

Note the following facts:

if p = 6, then:

`w\text{ =}(1)/(2)(6)+20=\text{ 3+20=23}`

if p = 10, then:

`w\text{ =}(1)/(2)(10)+20=\text{ 5+20 = 25}`

if p = 16, then:

`w\text{ =}(1)/(2)(16)+20=8+20=28`

On the other hand, note that equation 1, is equivalent to:

`p=2w-40`

thus, w = 32, then:

`p=2(32)-40=24`

then, we can conclude that the correct answer is: