Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

look at the diagram. which equation can be used to solve for x? 8x + 90…

Question

look at the diagram. which equation can be used to solve for x? 8x + 90 = 180 8x + 113 = 180 8x + 71 = 180 8x + 132 = 180 solve for x. x =

Explanation:

Step1: 明确角度关系

周角为360°,图中直角为90°,已知几个角的度数和为360°,除去直角,其余角组成平角180°。

Step2: 列方程

由图可知,除去直角,71°角与8x°角组成平角,可列方程$8x + 71=180$。

Step3: 解方程

$8x=180 - 71$,即$8x = 109$,$x=\frac{109}{8}=13.625$。

Answer:

方程:$8x + 71 = 180$
$x = 13.625$