X and Y are supplementary, that means X + Y = 180.
But we have, X = Y +24, then
X + Y = Y + 24 + Y = 2Y + 24 = 180
Then
2Y = 156
Y = 78
Then X = 78 + 24 = 102.
Answer:
use a ruler to answer the question
7.8456 x 10^(-4)
this means you move the decimal place to the left 4 places to get the actual value
You will get the incorrect answer because lining up the digits when adding or subtracting is important but it isn’t needed for multiplying.
