Parallel lines e and f are cut by transversal b. Horizontal and parallel lines e and f are cut by transversal b. At the intersec
tion of lines b and e, the uppercase right angle is (2 x + 10) degrees. At the intersection of lines b and f, the bottom left angle is (3 x minus 15) degrees. What is the value of x? 1 5 25 37
<em><u>Any integer (not a fraction) is divisible by 1
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<em><u>The sum of the digits is divisible by 3
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<em><u>The last 2 digits are divisible by 4
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<em><u>The last digit is 0 or 5
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<em><u>Is even and is divisible by 3 (it passes both the 2 rule and 3 rule above)
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<em><u>Double the last digit and subtract it from a number made by the other digits. The result must be divisible by 7. (We can apply this rule to that answer again)
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<em><u>The last three digits are divisible by 8
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<em><u>The sum of the digits is divisible by 9
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<em><u>The number ends in 0
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<em><u>Add and subtract digits in an alternating pattern (add digit, subtract next digit, add next digit, etc). Then check if that answer is divisible by 11.
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<em><u>The number is divisible by both 3 and 4 (it passes both the 3 rule and 4 rule above)
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