An equation and the steps to solve it are shown below:

Ответ:

zriggi2528

10.03.2022

$3x-\dfrac{1}{5}(10x+5)=6\qquad\text{use distributive property}\\\\3x-\left(\dfrac{1}{5}\right)(10x)-\left(\dfrac{1}{5}\right)(5)=6\\\\3x-2x-1=6\qquad\text{add 1 to both sides}\\\\\boxed{x=7}$

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Ответ:

danielhall

27.05.2022

Mathematics

In right triangle LMN are given the lenghts of two legs. You can find the value of $\tan x$ and $\tan y$ and then estimate the difference y-x.

$\tan x=\dfrac{LM}{LN}=\dfrac{14.1}{19.1}=\dfrac{141}{191},\\ \\x=\arctan \dfrac{141}{191}\approx 36.4^{\circ}.$

$\tan y=\dfrac{LN}{LM}=\dfrac{19.1}{14.1}=\dfrac{191}{141},\\ \\y=\arctan \dfrac{191}{141}\approx 53.6^{\circ}.$

Then

$y-x=53.6^{\circ}-36.4^{\circ}=17.2^{\circ}.$

correct choice is D

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An equation and the steps to solve it are shown below: 3x-1/5(10x+5)=6

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