Supplementary angles add up to 180
40+x=180
x=140
Answer:
The missing number is 16.
Step-by-step explanation:
The ratio between x and y is 1:4. 4 times 4 is 16. Hope this helped! :)
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U need to simplify 5×5 to 25,move the negative to the left, then simplify the brackets
The last one is the answer