Mathematics: Write an equation to represent this problem and find the number. 1. the sum of fifteen and six times a number t is eighty-one. what is the number?

Write an equation to represent this problem and

umadbro46111

28.05.2020

t = 11

Step-by-step explanation:

15+6t =81 subtract 15 from both sides and you get 6t = 66 then divide both sides by 6 and you get 11. so the anwser is t=11

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PNA

17.02.2020

$Use:a^2-b^2=(a-b)(a+b)\\\\4x^2-16=4(x^2-4)=4(x^2-2^2)=\boxed{4(x-2)(x+2)}$

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