zitterkoph
13.11.2020 •
Mathematics
The sum of three consecutive odd integers is 153. Find the three odd integers.
First integer =
Second integer =
Third integer =
PLEASE HEL!!
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Ответ:
49, 51, 53
Step-by-step explanation:
Let the first odd integer be n.
Then the consecutive odd integer will be (n+2).
This will be followed by (n+4).
We know that the sum of these three is 153. In other words:
Solve for n. Combine like terms:
Subtract 6 from both sides:
Divide both sides by 3:
Therefore, our first odd number is 49.
So, our consecutive numbers must be 51 and 53.
Hence, our sequence is:
49, 51, 53
Notes:
If we get an even number for n or a non-integer value, then there are no three consecutive odd integers that sum to 153.
Ответ:
d
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
AC² + BC² = AB² , that is
x² + x² = (12 )²
2x² = 288 ( divide both sides by 2 )
x² = 144 ( take the square root of both sides )
x = = 12