Answer:

Step-by-step explanation:
Given

Required
Solve
Open brackets


Collect like terms


Answer:
s = 130 degrees
Step-by-step explanation:
decagon has a 1,440 degrees interior angles
equation: 1,440 = s + 1310
to find s, add all the known angles
⇒ s + 150 + 170 + 160 + 130 +120 + 160 + 105 + 160 +155
⇒ s + 1,310
equation:
s + 1310 = 1440
subtract each side by 1310
⇒ s + 1310 - 1310 = 1440 - 1310
⇒ s = 130
Hey!
Hope this helps...
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54 * (2/3) = 36 students were on the bus.
54 - 36 = 18 chaperones were on the bus.
YOU CANNOT ADD OR SUBTRACT FRACTIONS WITH DIFFERENT DENOMINATORS!! You need to find the LCD (Lowest Common Denominator) for 6 and 2 with is 6!!
(CORRECTED WORK SHOWN BELOW)
Answer: its 5ai the awnswer is 444
Step-by-step explanation: