leeamation31
05.01.2021 •
Mathematics
-324/18
Plz show all the steps of how you got the answer.
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Ответ:
-18
Step-by-step explanation:
Step 1 - divide the numerator and denominator by 18
-324÷18 / 18÷18
Step 2 - divide the numbers
-18 / 18÷18
-18/1
any expression divided by 1 remains the same
-18
Ответ:
Step-by-step explanation: In this problem, we are given that the measures of the angles of a triangle are in the ratio 5:7:8 and we are asked to find the measure of each angle.
When the ratio of the angles is 5:7:8, we can represent the angles as 5x, 7x, and 8x.
5x ⇒ first angle
7x ⇒ second angle
8x ⇒ third angle
Since the measures of the angles of a triangle add to 180°, we can set up an equation.
5x + 7x + 8x = 180
20x = 180
÷20 ÷20
X = 9
Now to find the measures of each of our angles, we simply plug 9 back in for x.
5x ⇒ first angle = 45°
7x ⇒ second angle = 63°
8x ⇒ third angle = 72°