Since they're vertical angles, they're equal in degree measure
since they're equal, we can make the two expressions equal to each other
5a - 1 = 2a + 20
add 1 to both sides
5a = 2a + 21
subtract 2a from both sides
3a = 21
divide both sides by 3a
a = 7
now, plug the answer you found for a into one of the two expressions
5a - 1 becomes (5*7) - 1, which equals 34
to double check that they're equivalent (since they're vertical angles)
2a + 20 becomes (2*7) + 20, which equals 34
both angles are 34 degrees!
Answer:
$574.41
Step-by-step explanation:
multiply 30 by dollar to pesos
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Answer:
505+425
Step-by-step explanation:
u just subtract 930 x 2
About how many pages.....estimate : 70 + 80 = 150
actual : 72 + 83 = 70 + 80 + 5 = 155
