3 years ago

What is the value of x? 20 40 45 85

Mathematics

2 answers:

cricket20 [7]3 years ago

6 0

2x+10=90
2x=80
x=40
the answer is 40.

Mumz [18]3 years ago

6 0

Answer:

the answer i 40 hope this helps :)

Step-by-step explanation:

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zhenek [66]

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3 years ago

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vaieri [72.5K]

Answer:

$\large\boxed{t=0\ \vee\ t=\dfrac{1}{4}}$

Step-by-step explanation:

$4t-16t^2=0\qquad\text{divide both sides by 4}\\\\\dfrac{4t}{4}-\dfrac{16t^2}{4}=\dfrac{0}{4}\\\\t-4t^2=0\\\\t(1-4t)=0\iff t=0\ \vee\ 1-4t=0\\\\1-4t=0\qquad\text{subtract 1 from both sides}\\\\-4t=-1\qquad\text{divide both sides by (-4)}\\\\t=\dfrac{1}{4}$