Answer:
x = 42
Step-by-step explanation:
The marked angles are supplementary, so their sum is 180°.
(2x +8) +(2x +4) = 180
4x +12 = 180 . . . . . . . . . simplify
x +3 = 45 . . . . . . . divide by 4 (because we can)
x = 42 . . . . . . subtract 3
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<em>Additional comment</em>
A "two-step" linear equation like this one is usually solved by subtracting the unwanted constant, then dividing by the coefficient of the variable. Here, we have done those steps in reverse order. This makes the numbers smaller and eliminates the coefficient of the variable. Sometimes I find it easier to solve the equation this way.
if we name that part x, then we can say
1/x = 1/a + 1/b
343 is the answer because 14 tens is 1 hundred and 4 tens
Answer:
???
Step-by-step explanation:
Answer:
SSS
Both these triangles are congruent to each other by SSS congruency
Hope it helps
