StanleyA646472 StanleyA646472
  • 28-10-2022
  • Mathematics
contestada

For all numbers p and q, q = 5/3p + 46 . What is the value of pwhen the value of q is 21 ?

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DallynI14586 DallynI14586
  • 28-10-2022

given that for all numbers of p and q,

q = 5/3p + 46

lets find p when q is 21

so lets substitute the value of q into the given equation

q = 5/3p + 46

21 = 5/3p + 46

lets collect like terms

21 - 46 = 5/3p

-25 = 5/3p

lets cross multiply

3 X -25 = 5p

-75 = 5p

5p = -75

divide both sides by 5

5p/5 = -75/5

p = -15

therefore for all values of p and q, q = 5/3p + 46,

the value of p is -15 when q is 21

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