Answer:
x = 73°
Step-by-step explanation:
a whole circle = 360°
so x + 50° + 91° + 2x = 360°
x+ 2x = 360°- 91° - 50°
3x = 219°
x = 219° ÷ 3
x = 73°
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Y=4x-9 missing value
2 answers:
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Answer:
y = 541
Step-by-step explanation:
The mean is calculated as
mean =
Mean of set A = =
= 266
ratio between means = 7 : 12, then
mean of set B = × 266 = 456 , thus
= 456 ( multiply both sides by 5 )
1739 + y = 2280 ( subtract 1739 from both sides )
y = 541