The measures of the angles of △RST are given by the expressions in the table. Angle Measure

1 answer:

6 0

Because a triangles angles add up to 180 degrees, we can say that

x+4+3x+9+31=180 degrees.

The question is now a simple algebraic expression.

4x+44=180
Subtract 44 on both sides

4x=136
Divide by 4 on both sides

x= 34

m∠S<span>= x+4, (34)+4, 38
</span>m∠S=38 degrees

m∠T= 3x+9, 3(34)+9, 102+9, 111
m∠T=111 degrees
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I hope this helps and please mark brainiest answer :D

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3 1/4 - 1 3/5 | please help !!

Luba_88 [7]

Answer:

Step-by-step explanation:

Step: 1: Convert mixed fraction to improepr fraction.

Step: 2 : Find the LCM of 4 , 5 = 20

Step 3: Find equivalent fractions with denominator as 20

Step 4: Now subtract.

$3\dfrac{1}{4}-1\dfrac{3}{5}=\dfrac{13}{4}-\dfrac{8}{5}$

$\sf = \dfrac{13*5}{4*5}-\dfrac{8*4}{5*4}\\\\\\ = \dfrac{65}{20}-\dfrac{32}{20}\\\\\\ = \dfrac{65-32}{20}\\\\\\ = \dfrac{33}{20}\\\\ \\ = 1 \dfrac{13}{20}$